Home / 25,410.28-38,150.33-12,938.69

Finding the Fourth Proportional to 25,410.28, 38,150.33 and 12,938.69

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Solution

The fourth proportional to 25,410.28, 38,150.33 and 12,938.69 is: 19,425.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,410.28 : 38,150.33 = 12,938.69 : x
  2. Step 2: Convert to fraction form
    25,410.28/38,150.33 = 12,938.69/x
  3. Step 3: Cross multiply
    25,410.28x = 38,150.33 × 12,938.69
  4. Step 4: Simplify right side
    25,410.28x = 493,615,134.86
  5. Step 5: Solve for x
    x = 493,615,134.86/25,410.28
  6. Step 6: Final answer
    x = 19,425.81

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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.