Home / 25,864.41-38,720.07-15,971.88

Finding the Fourth Proportional to 25,864.41, 38,720.07 and 15,971.88

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Solution

The fourth proportional to 25,864.41, 38,720.07 and 15,971.88 is: 23,910.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,864.41 : 38,720.07 = 15,971.88 : x
  2. Step 2: Convert to fraction form
    25,864.41/38,720.07 = 15,971.88/x
  3. Step 3: Cross multiply
    25,864.41x = 38,720.07 × 15,971.88
  4. Step 4: Simplify right side
    25,864.41x = 618,432,311.63
  5. Step 5: Solve for x
    x = 618,432,311.63/25,864.41
  6. Step 6: Final answer
    x = 23,910.55

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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.