Home / 15,388.38-23,078.01-4,292.39

Finding the Fourth Proportional to 15,388.38, 23,078.01 and 4,292.39

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Solution

The fourth proportional to 15,388.38, 23,078.01 and 4,292.39 is: 6,437.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,388.38 : 23,078.01 = 4,292.39 : x
  2. Step 2: Convert to fraction form
    15,388.38/23,078.01 = 4,292.39/x
  3. Step 3: Cross multiply
    15,388.38x = 23,078.01 × 4,292.39
  4. Step 4: Simplify right side
    15,388.38x = 99,059,819.34
  5. Step 5: Solve for x
    x = 99,059,819.34/15,388.38
  6. Step 6: Final answer
    x = 6,437.31

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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.