Home / 38,139.43-57,209.16-10,437.43

Finding the Fourth Proportional to 38,139.43, 57,209.16 and 10,437.43

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Solution

The fourth proportional to 38,139.43, 57,209.16 and 10,437.43 is: 15,656.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,139.43 : 57,209.16 = 10,437.43 : x
  2. Step 2: Convert to fraction form
    38,139.43/57,209.16 = 10,437.43/x
  3. Step 3: Cross multiply
    38,139.43x = 57,209.16 × 10,437.43
  4. Step 4: Simplify right side
    38,139.43x = 597,116,602.86
  5. Step 5: Solve for x
    x = 597,116,602.86/38,139.43
  6. Step 6: Final answer
    x = 15,656.15

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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.