Home / 25,478.64-38,218.41-8,839.21

Finding the Fourth Proportional to 25,478.64, 38,218.41 and 8,839.21

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Solution

The fourth proportional to 25,478.64, 38,218.41 and 8,839.21 is: 13,258.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,478.64 : 38,218.41 = 8,839.21 : x
  2. Step 2: Convert to fraction form
    25,478.64/38,218.41 = 8,839.21/x
  3. Step 3: Cross multiply
    25,478.64x = 38,218.41 × 8,839.21
  4. Step 4: Simplify right side
    25,478.64x = 337,820,551.86
  5. Step 5: Solve for x
    x = 337,820,551.86/25,478.64
  6. Step 6: Final answer
    x = 13,258.97

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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.