Home / 20,079.96-27,710.41-11,127.61

Finding the Fourth Proportional to 20,079.96, 27,710.41 and 11,127.61

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Solution

The fourth proportional to 20,079.96, 27,710.41 and 11,127.61 is: 15,356.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.96 : 27,710.41 = 11,127.61 : x
  2. Step 2: Convert to fraction form
    20,079.96/27,710.41 = 11,127.61/x
  3. Step 3: Cross multiply
    20,079.96x = 27,710.41 × 11,127.61
  4. Step 4: Simplify right side
    20,079.96x = 308,350,663.10
  5. Step 5: Solve for x
    x = 308,350,663.10/20,079.96
  6. Step 6: Final answer
    x = 15,356.14

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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.