Home / 25,540.38-38,228.63-13,664.45

Finding the Fourth Proportional to 25,540.38, 38,228.63 and 13,664.45

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Solution

The fourth proportional to 25,540.38, 38,228.63 and 13,664.45 is: 20,452.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,540.38 : 38,228.63 = 13,664.45 : x
  2. Step 2: Convert to fraction form
    25,540.38/38,228.63 = 13,664.45/x
  3. Step 3: Cross multiply
    25,540.38x = 38,228.63 × 13,664.45
  4. Step 4: Simplify right side
    25,540.38x = 522,372,943.74
  5. Step 5: Solve for x
    x = 522,372,943.74/25,540.38
  6. Step 6: Final answer
    x = 20,452.83

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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.