Home / 39,960.08-55,143.84-22,054.76

Finding the Fourth Proportional to 39,960.08, 55,143.84 and 22,054.76

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Solution

The fourth proportional to 39,960.08, 55,143.84 and 22,054.76 is: 30,434.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960.08 : 55,143.84 = 22,054.76 : x
  2. Step 2: Convert to fraction form
    39,960.08/55,143.84 = 22,054.76/x
  3. Step 3: Cross multiply
    39,960.08x = 55,143.84 × 22,054.76
  4. Step 4: Simplify right side
    39,960.08x = 1,216,184,156.68
  5. Step 5: Solve for x
    x = 1,216,184,156.68/39,960.08
  6. Step 6: Final answer
    x = 30,434.98

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Half scale
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Double scale
Find fourth proportional to 39,961.08, 55,145.22 and 22,055.76
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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.