Home / 38,655.52-57,982.36-12,360.49

Finding the Fourth Proportional to 38,655.52, 57,982.36 and 12,360.49

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Solution

The fourth proportional to 38,655.52, 57,982.36 and 12,360.49 is: 18,540.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,655.52 : 57,982.36 = 12,360.49 : x
  2. Step 2: Convert to fraction form
    38,655.52/57,982.36 = 12,360.49/x
  3. Step 3: Cross multiply
    38,655.52x = 57,982.36 × 12,360.49
  4. Step 4: Simplify right side
    38,655.52x = 716,690,380.96
  5. Step 5: Solve for x
    x = 716,690,380.96/38,655.52
  6. Step 6: Final answer
    x = 18,540.44

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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.