Home / 27,781.41-38,338.07-15,034.31

Finding the Fourth Proportional to 27,781.41, 38,338.07 and 15,034.31

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Solution

The fourth proportional to 27,781.41, 38,338.07 and 15,034.31 is: 20,747.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,781.41 : 38,338.07 = 15,034.31 : x
  2. Step 2: Convert to fraction form
    27,781.41/38,338.07 = 15,034.31/x
  3. Step 3: Cross multiply
    27,781.41x = 38,338.07 × 15,034.31
  4. Step 4: Simplify right side
    27,781.41x = 576,386,162.32
  5. Step 5: Solve for x
    x = 576,386,162.32/27,781.41
  6. Step 6: Final answer
    x = 20,747.19

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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.