Home / 20,089.38-27,717-11,590.36

Finding the Fourth Proportional to 20,089.38, 27,717 and 11,590.36

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Solution

The fourth proportional to 20,089.38, 27,717 and 11,590.36 is: 15,991.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.38 : 27,717 = 11,590.36 : x
  2. Step 2: Convert to fraction form
    20,089.38/27,717 = 11,590.36/x
  3. Step 3: Cross multiply
    20,089.38x = 27,717 × 11,590.36
  4. Step 4: Simplify right side
    20,089.38x = 321,250,008.12
  5. Step 5: Solve for x
    x = 321,250,008.12/20,089.38
  6. Step 6: Final answer
    x = 15,991.04

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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.