Home / 27,781.43-38,338.10-15,034.34

Finding the Fourth Proportional to 27,781.43, 38,338.10 and 15,034.34

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Solution

The fourth proportional to 27,781.43, 38,338.10 and 15,034.34 is: 20,747.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,781.43 : 38,338.10 = 15,034.34 : x
  2. Step 2: Convert to fraction form
    27,781.43/38,338.10 = 15,034.34/x
  3. Step 3: Cross multiply
    27,781.43x = 38,338.10 × 15,034.34
  4. Step 4: Simplify right side
    27,781.43x = 576,388,030.35
  5. Step 5: Solve for x
    x = 576,388,030.35/27,781.43
  6. Step 6: Final answer
    x = 20,747.24

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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.