Home / 31,103.17-42,920.76-17,672.56

Finding the Fourth Proportional to 31,103.17, 42,920.76 and 17,672.56

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Solution

The fourth proportional to 31,103.17, 42,920.76 and 17,672.56 is: 24,387.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,103.17 : 42,920.76 = 17,672.56 : x
  2. Step 2: Convert to fraction form
    31,103.17/42,920.76 = 17,672.56/x
  3. Step 3: Cross multiply
    31,103.17x = 42,920.76 × 17,672.56
  4. Step 4: Simplify right side
    31,103.17x = 758,519,706.35
  5. Step 5: Solve for x
    x = 758,519,706.35/31,103.17
  6. Step 6: Final answer
    x = 24,387.22

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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.