Home / 25,691.79-35,440.20-15,079.41

Finding the Fourth Proportional to 25,691.79, 35,440.20 and 15,079.41

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Solution

The fourth proportional to 25,691.79, 35,440.20 and 15,079.41 is: 20,801.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.79 : 35,440.20 = 15,079.41 : x
  2. Step 2: Convert to fraction form
    25,691.79/35,440.20 = 15,079.41/x
  3. Step 3: Cross multiply
    25,691.79x = 35,440.20 × 15,079.41
  4. Step 4: Simplify right side
    25,691.79x = 534,417,306.28
  5. Step 5: Solve for x
    x = 534,417,306.28/25,691.79
  6. Step 6: Final answer
    x = 20,801.09

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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.