Home / 38,657.97-57,988.17-18,390.30

Finding the Fourth Proportional to 38,657.97, 57,988.17 and 18,390.30

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Solution

The fourth proportional to 38,657.97, 57,988.17 and 18,390.30 is: 27,586.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,657.97 : 57,988.17 = 18,390.30 : x
  2. Step 2: Convert to fraction form
    38,657.97/57,988.17 = 18,390.30/x
  3. Step 3: Cross multiply
    38,657.97x = 57,988.17 × 18,390.30
  4. Step 4: Simplify right side
    38,657.97x = 1,066,419,842.75
  5. Step 5: Solve for x
    x = 1,066,419,842.75/38,657.97
  6. Step 6: Final answer
    x = 27,586.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.