Home / 31,987.89-47,981.84-16,395.57

Finding the Fourth Proportional to 31,987.89, 47,981.84 and 16,395.57

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Solution

The fourth proportional to 31,987.89, 47,981.84 and 16,395.57 is: 24,593.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,987.89 : 47,981.84 = 16,395.57 : x
  2. Step 2: Convert to fraction form
    31,987.89/47,981.84 = 16,395.57/x
  3. Step 3: Cross multiply
    31,987.89x = 47,981.84 × 16,395.57
  4. Step 4: Simplify right side
    31,987.89x = 786,689,534.47
  5. Step 5: Solve for x
    x = 786,689,534.47/31,987.89
  6. Step 6: Final answer
    x = 24,593.36

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Similar ratio
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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.