Home / 20,125.97-27,773.94-12,576.69

Finding the Fourth Proportional to 20,125.97, 27,773.94 and 12,576.69

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Solution

The fourth proportional to 20,125.97, 27,773.94 and 12,576.69 is: 17,355.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.97 : 27,773.94 = 12,576.69 : x
  2. Step 2: Convert to fraction form
    20,125.97/27,773.94 = 12,576.69/x
  3. Step 3: Cross multiply
    20,125.97x = 27,773.94 × 12,576.69
  4. Step 4: Simplify right side
    20,125.97x = 349,304,031.71
  5. Step 5: Solve for x
    x = 349,304,031.71/20,125.97
  6. Step 6: Final answer
    x = 17,355.89

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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.