Home / 20,077.17-27,706.68-11,124.78

Finding the Fourth Proportional to 20,077.17, 27,706.68 and 11,124.78

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Solution

The fourth proportional to 20,077.17, 27,706.68 and 11,124.78 is: 15,352.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.17 : 27,706.68 = 11,124.78 : x
  2. Step 2: Convert to fraction form
    20,077.17/27,706.68 = 11,124.78/x
  3. Step 3: Cross multiply
    20,077.17x = 27,706.68 × 11,124.78
  4. Step 4: Simplify right side
    20,077.17x = 308,230,719.53
  5. Step 5: Solve for x
    x = 308,230,719.53/20,077.17
  6. Step 6: Final answer
    x = 15,352.30

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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.