Home / 38,061.68-57,009.30-19,309.40

Finding the Fourth Proportional to 38,061.68, 57,009.30 and 19,309.40

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Solution

The fourth proportional to 38,061.68, 57,009.30 and 19,309.40 is: 28,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,061.68 : 57,009.30 = 19,309.40 : x
  2. Step 2: Convert to fraction form
    38,061.68/57,009.30 = 19,309.40/x
  3. Step 3: Cross multiply
    38,061.68x = 57,009.30 × 19,309.40
  4. Step 4: Simplify right side
    38,061.68x = 1,100,815,377.42
  5. Step 5: Solve for x
    x = 1,100,815,377.42/38,061.68
  6. Step 6: Final answer
    x = 28,921.88

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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.