Home / 38,090.74-57,145.20-15,891.78

Finding the Fourth Proportional to 38,090.74, 57,145.20 and 15,891.78

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Solution

The fourth proportional to 38,090.74, 57,145.20 and 15,891.78 is: 23,841.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,090.74 : 57,145.20 = 15,891.78 : x
  2. Step 2: Convert to fraction form
    38,090.74/57,145.20 = 15,891.78/x
  3. Step 3: Cross multiply
    38,090.74x = 57,145.20 × 15,891.78
  4. Step 4: Simplify right side
    38,090.74x = 908,138,946.46
  5. Step 5: Solve for x
    x = 908,138,946.46/38,090.74
  6. Step 6: Final answer
    x = 23,841.46

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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.