Home / 20,474.53-28,252.53-11,521.80

Finding the Fourth Proportional to 20,474.53, 28,252.53 and 11,521.80

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Solution

The fourth proportional to 20,474.53, 28,252.53 and 11,521.80 is: 15,898.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474.53 : 28,252.53 = 11,521.80 : x
  2. Step 2: Convert to fraction form
    20,474.53/28,252.53 = 11,521.80/x
  3. Step 3: Cross multiply
    20,474.53x = 28,252.53 × 11,521.80
  4. Step 4: Simplify right side
    20,474.53x = 325,520,000.15
  5. Step 5: Solve for x
    x = 325,520,000.15/20,474.53
  6. Step 6: Final answer
    x = 15,898.78

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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.