Home / 20,132.33-27,780.59-11,753.69

Finding the Fourth Proportional to 20,132.33, 27,780.59 and 11,753.69

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Solution

The fourth proportional to 20,132.33, 27,780.59 and 11,753.69 is: 16,218.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.33 : 27,780.59 = 11,753.69 : x
  2. Step 2: Convert to fraction form
    20,132.33/27,780.59 = 11,753.69/x
  3. Step 3: Cross multiply
    20,132.33x = 27,780.59 × 11,753.69
  4. Step 4: Simplify right side
    20,132.33x = 326,524,384.11
  5. Step 5: Solve for x
    x = 326,524,384.11/20,132.33
  6. Step 6: Final answer
    x = 16,218.91

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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.