Home / 20,125.47-27,773.24-12,576.18

Finding the Fourth Proportional to 20,125.47, 27,773.24 and 12,576.18

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Solution

The fourth proportional to 20,125.47, 27,773.24 and 12,576.18 is: 17,355.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.47 : 27,773.24 = 12,576.18 : x
  2. Step 2: Convert to fraction form
    20,125.47/27,773.24 = 12,576.18/x
  3. Step 3: Cross multiply
    20,125.47x = 27,773.24 × 12,576.18
  4. Step 4: Simplify right side
    20,125.47x = 349,281,265.42
  5. Step 5: Solve for x
    x = 349,281,265.42/20,125.47
  6. Step 6: Final answer
    x = 17,355.19

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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.