Home / 31,142.53-46,691.17-12,416.95

Finding the Fourth Proportional to 31,142.53, 46,691.17 and 12,416.95

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Solution

The fourth proportional to 31,142.53, 46,691.17 and 12,416.95 is: 18,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,142.53 : 46,691.17 = 12,416.95 : x
  2. Step 2: Convert to fraction form
    31,142.53/46,691.17 = 12,416.95/x
  3. Step 3: Cross multiply
    31,142.53x = 46,691.17 × 12,416.95
  4. Step 4: Simplify right side
    31,142.53x = 579,761,861.25
  5. Step 5: Solve for x
    x = 579,761,861.25/31,142.53
  6. Step 6: Final answer
    x = 18,616.40

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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.