Home / 40,145.40-55,399.08-22,240.69

Finding the Fourth Proportional to 40,145.40, 55,399.08 and 22,240.69

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Solution

The fourth proportional to 40,145.40, 55,399.08 and 22,240.69 is: 30,691.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,145.40 : 55,399.08 = 22,240.69 : x
  2. Step 2: Convert to fraction form
    40,145.40/55,399.08 = 22,240.69/x
  3. Step 3: Cross multiply
    40,145.40x = 55,399.08 × 22,240.69
  4. Step 4: Simplify right side
    40,145.40x = 1,232,113,764.57
  5. Step 5: Solve for x
    x = 1,232,113,764.57/40,145.40
  6. Step 6: Final answer
    x = 30,691.28

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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.