Home / 39,960.46-55,145.46-22,056.76

Finding the Fourth Proportional to 39,960.46, 55,145.46 and 22,056.76

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Solution

The fourth proportional to 39,960.46, 55,145.46 and 22,056.76 is: 30,438.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960.46 : 55,145.46 = 22,056.76 : x
  2. Step 2: Convert to fraction form
    39,960.46/55,145.46 = 22,056.76/x
  3. Step 3: Cross multiply
    39,960.46x = 55,145.46 × 22,056.76
  4. Step 4: Simplify right side
    39,960.46x = 1,216,330,176.31
  5. Step 5: Solve for x
    x = 1,216,330,176.31/39,960.46
  6. Step 6: Final answer
    x = 30,438.34

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Find fourth proportional to 19,980.23, 27,572.73 and 11,028.38
Half scale
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Double scale
Find fourth proportional to 39,961.46, 55,146.84 and 22,057.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.