Home / 27,743.13-38,285.65-15,167.88

Finding the Fourth Proportional to 27,743.13, 38,285.65 and 15,167.88

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Solution

The fourth proportional to 27,743.13, 38,285.65 and 15,167.88 is: 20,931.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,743.13 : 38,285.65 = 15,167.88 : x
  2. Step 2: Convert to fraction form
    27,743.13/38,285.65 = 15,167.88/x
  3. Step 3: Cross multiply
    27,743.13x = 38,285.65 × 15,167.88
  4. Step 4: Simplify right side
    27,743.13x = 580,712,144.92
  5. Step 5: Solve for x
    x = 580,712,144.92/27,743.13
  6. Step 6: Final answer
    x = 20,931.75

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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.