Home / 27,819.38-38,390.75-15,244.13

Finding the Fourth Proportional to 27,819.38, 38,390.75 and 15,244.13

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Solution

The fourth proportional to 27,819.38, 38,390.75 and 15,244.13 is: 21,036.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819.38 : 38,390.75 = 15,244.13 : x
  2. Step 2: Convert to fraction form
    27,819.38/38,390.75 = 15,244.13/x
  3. Step 3: Cross multiply
    27,819.38x = 38,390.75 × 15,244.13
  4. Step 4: Simplify right side
    27,819.38x = 585,233,429.95
  5. Step 5: Solve for x
    x = 585,233,429.95/27,819.38
  6. Step 6: Final answer
    x = 21,036.90

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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.