Home / 38,564.20-57,749.10-28,649.80

Finding the Fourth Proportional to 38,564.20, 57,749.10 and 28,649.80

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Solution

The fourth proportional to 38,564.20, 57,749.10 and 28,649.80 is: 42,902.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,564.20 : 57,749.10 = 28,649.80 : x
  2. Step 2: Convert to fraction form
    38,564.20/57,749.10 = 28,649.80/x
  3. Step 3: Cross multiply
    38,564.20x = 57,749.10 × 28,649.80
  4. Step 4: Simplify right side
    38,564.20x = 1,654,500,165.18
  5. Step 5: Solve for x
    x = 1,654,500,165.18/38,564.20
  6. Step 6: Final answer
    x = 42,902.49

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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.