Home / 27,849.29-38,387.23-21,789.34

Finding the Fourth Proportional to 27,849.29, 38,387.23 and 21,789.34

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Solution

The fourth proportional to 27,849.29, 38,387.23 and 21,789.34 is: 30,034.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,849.29 : 38,387.23 = 21,789.34 : x
  2. Step 2: Convert to fraction form
    27,849.29/38,387.23 = 21,789.34/x
  3. Step 3: Cross multiply
    27,849.29x = 38,387.23 × 21,789.34
  4. Step 4: Simplify right side
    27,849.29x = 836,432,255.69
  5. Step 5: Solve for x
    x = 836,432,255.69/27,849.29
  6. Step 6: Final answer
    x = 30,034.25

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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.