Home / 16,530.48-24,781.14-12,287.70

Finding the Fourth Proportional to 16,530.48, 24,781.14 and 12,287.70

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Solution

The fourth proportional to 16,530.48, 24,781.14 and 12,287.70 is: 18,420.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,530.48 : 24,781.14 = 12,287.70 : x
  2. Step 2: Convert to fraction form
    16,530.48/24,781.14 = 12,287.70/x
  3. Step 3: Cross multiply
    16,530.48x = 24,781.14 × 12,287.70
  4. Step 4: Simplify right side
    16,530.48x = 304,503,213.98
  5. Step 5: Solve for x
    x = 304,503,213.98/16,530.48
  6. Step 6: Final answer
    x = 18,420.71

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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.