Home / 27,781.42-38,338.06-15,034.32

Finding the Fourth Proportional to 27,781.42, 38,338.06 and 15,034.32

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Solution

The fourth proportional to 27,781.42, 38,338.06 and 15,034.32 is: 20,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,781.42 : 38,338.06 = 15,034.32 : x
  2. Step 2: Convert to fraction form
    27,781.42/38,338.06 = 15,034.32/x
  3. Step 3: Cross multiply
    27,781.42x = 38,338.06 × 15,034.32
  4. Step 4: Simplify right side
    27,781.42x = 576,386,758.06
  5. Step 5: Solve for x
    x = 576,386,758.06/27,781.42
  6. Step 6: Final answer
    x = 20,747.20

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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.