Home / 28,762.20-39,691.76-16,186.95

Finding the Fourth Proportional to 28,762.20, 39,691.76 and 16,186.95

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Solution

The fourth proportional to 28,762.20, 39,691.76 and 16,186.95 is: 22,337.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,762.20 : 39,691.76 = 16,186.95 : x
  2. Step 2: Convert to fraction form
    28,762.20/39,691.76 = 16,186.95/x
  3. Step 3: Cross multiply
    28,762.20x = 39,691.76 × 16,186.95
  4. Step 4: Simplify right side
    28,762.20x = 642,488,453.60
  5. Step 5: Solve for x
    x = 642,488,453.60/28,762.20
  6. Step 6: Final answer
    x = 22,337.95

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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.