Home / 20,079.59-27,710.06-11,127.24

Finding the Fourth Proportional to 20,079.59, 27,710.06 and 11,127.24

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Solution

The fourth proportional to 20,079.59, 27,710.06 and 11,127.24 is: 15,355.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.59 : 27,710.06 = 11,127.24 : x
  2. Step 2: Convert to fraction form
    20,079.59/27,710.06 = 11,127.24/x
  3. Step 3: Cross multiply
    20,079.59x = 27,710.06 × 11,127.24
  4. Step 4: Simplify right side
    20,079.59x = 308,336,432.40
  5. Step 5: Solve for x
    x = 308,336,432.40/20,079.59
  6. Step 6: Final answer
    x = 15,355.72

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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.