Home / 20,060.43-27,687.95-12,505.30

Finding the Fourth Proportional to 20,060.43, 27,687.95 and 12,505.30

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Solution

The fourth proportional to 20,060.43, 27,687.95 and 12,505.30 is: 17,260.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,060.43 : 27,687.95 = 12,505.30 : x
  2. Step 2: Convert to fraction form
    20,060.43/27,687.95 = 12,505.30/x
  3. Step 3: Cross multiply
    20,060.43x = 27,687.95 × 12,505.30
  4. Step 4: Simplify right side
    20,060.43x = 346,246,121.14
  5. Step 5: Solve for x
    x = 346,246,121.14/20,060.43
  6. Step 6: Final answer
    x = 17,260.15

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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.