Home / 19,872.38-27,451.86-18,822.62

Finding the Fourth Proportional to 19,872.38, 27,451.86 and 18,822.62

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Solution

The fourth proportional to 19,872.38, 27,451.86 and 18,822.62 is: 26,001.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.38 : 27,451.86 = 18,822.62 : x
  2. Step 2: Convert to fraction form
    19,872.38/27,451.86 = 18,822.62/x
  3. Step 3: Cross multiply
    19,872.38x = 27,451.86 × 18,822.62
  4. Step 4: Simplify right side
    19,872.38x = 516,715,929.07
  5. Step 5: Solve for x
    x = 516,715,929.07/19,872.38
  6. Step 6: Final answer
    x = 26,001.71

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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.