Home / 20,500.48-28,307.20-16,724.16

Finding the Fourth Proportional to 20,500.48, 28,307.20 and 16,724.16

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Solution

The fourth proportional to 20,500.48, 28,307.20 and 16,724.16 is: 23,092.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500.48 : 28,307.20 = 16,724.16 : x
  2. Step 2: Convert to fraction form
    20,500.48/28,307.20 = 16,724.16/x
  3. Step 3: Cross multiply
    20,500.48x = 28,307.20 × 16,724.16
  4. Step 4: Simplify right side
    20,500.48x = 473,414,141.95
  5. Step 5: Solve for x
    x = 473,414,141.95/20,500.48
  6. Step 6: Final answer
    x = 23,092.83

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1.5x scale

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.