Home / 20,842.92-31,280.13-16,151.49

Finding the Fourth Proportional to 20,842.92, 31,280.13 and 16,151.49

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Solution

The fourth proportional to 20,842.92, 31,280.13 and 16,151.49 is: 24,239.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842.92 : 31,280.13 = 16,151.49 : x
  2. Step 2: Convert to fraction form
    20,842.92/31,280.13 = 16,151.49/x
  3. Step 3: Cross multiply
    20,842.92x = 31,280.13 × 16,151.49
  4. Step 4: Simplify right side
    20,842.92x = 505,220,706.89
  5. Step 5: Solve for x
    x = 505,220,706.89/20,842.92
  6. Step 6: Final answer
    x = 24,239.44

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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.