Home / 25,420.24-38,132.04-8,781.88

Finding the Fourth Proportional to 25,420.24, 38,132.04 and 8,781.88

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Solution

The fourth proportional to 25,420.24, 38,132.04 and 8,781.88 is: 13,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,420.24 : 38,132.04 = 8,781.88 : x
  2. Step 2: Convert to fraction form
    25,420.24/38,132.04 = 8,781.88/x
  3. Step 3: Cross multiply
    25,420.24x = 38,132.04 × 8,781.88
  4. Step 4: Simplify right side
    25,420.24x = 334,870,999.44
  5. Step 5: Solve for x
    x = 334,870,999.44/25,420.24
  6. Step 6: Final answer
    x = 13,173.40

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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.