Home / 42,008.20-57,972.36-25,869.40

Finding the Fourth Proportional to 42,008.20, 57,972.36 and 25,869.40

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Solution

The fourth proportional to 42,008.20, 57,972.36 and 25,869.40 is: 35,700.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,008.20 : 57,972.36 = 25,869.40 : x
  2. Step 2: Convert to fraction form
    42,008.20/57,972.36 = 25,869.40/x
  3. Step 3: Cross multiply
    42,008.20x = 57,972.36 × 25,869.40
  4. Step 4: Simplify right side
    42,008.20x = 1,499,710,169.78
  5. Step 5: Solve for x
    x = 1,499,710,169.78/42,008.20
  6. Step 6: Final answer
    x = 35,700.41

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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.