Home / 20,732.62-28,611.02-11,780.13

Finding the Fourth Proportional to 20,732.62, 28,611.02 and 11,780.13

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Solution

The fourth proportional to 20,732.62, 28,611.02 and 11,780.13 is: 16,256.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.62 : 28,611.02 = 11,780.13 : x
  2. Step 2: Convert to fraction form
    20,732.62/28,611.02 = 11,780.13/x
  3. Step 3: Cross multiply
    20,732.62x = 28,611.02 × 11,780.13
  4. Step 4: Simplify right side
    20,732.62x = 337,041,535.03
  5. Step 5: Solve for x
    x = 337,041,535.03/20,732.62
  6. Step 6: Final answer
    x = 16,256.59

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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.