Home / 20,898.15-28,841.25-11,468.53

Finding the Fourth Proportional to 20,898.15, 28,841.25 and 11,468.53

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Solution

The fourth proportional to 20,898.15, 28,841.25 and 11,468.53 is: 15,827.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.15 : 28,841.25 = 11,468.53 : x
  2. Step 2: Convert to fraction form
    20,898.15/28,841.25 = 11,468.53/x
  3. Step 3: Cross multiply
    20,898.15x = 28,841.25 × 11,468.53
  4. Step 4: Simplify right side
    20,898.15x = 330,766,740.86
  5. Step 5: Solve for x
    x = 330,766,740.86/20,898.15
  6. Step 6: Final answer
    x = 15,827.56

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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.