Home / 39,139.19-58,705.59-15,445.78

Finding the Fourth Proportional to 39,139.19, 58,705.59 and 15,445.78

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Solution

The fourth proportional to 39,139.19, 58,705.59 and 15,445.78 is: 23,167.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139.19 : 58,705.59 = 15,445.78 : x
  2. Step 2: Convert to fraction form
    39,139.19/58,705.59 = 15,445.78/x
  3. Step 3: Cross multiply
    39,139.19x = 58,705.59 × 15,445.78
  4. Step 4: Simplify right side
    39,139.19x = 906,753,627.91
  5. Step 5: Solve for x
    x = 906,753,627.91/39,139.19
  6. Step 6: Final answer
    x = 23,167.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.