Home / 25,470.72-38,180.16-10,689.84

Finding the Fourth Proportional to 25,470.72, 38,180.16 and 10,689.84

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Solution

The fourth proportional to 25,470.72, 38,180.16 and 10,689.84 is: 16,023.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,470.72 : 38,180.16 = 10,689.84 : x
  2. Step 2: Convert to fraction form
    25,470.72/38,180.16 = 10,689.84/x
  3. Step 3: Cross multiply
    25,470.72x = 38,180.16 × 10,689.84
  4. Step 4: Simplify right side
    25,470.72x = 408,139,801.57
  5. Step 5: Solve for x
    x = 408,139,801.57/25,470.72
  6. Step 6: Final answer
    x = 16,023.88

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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.