Home / 25,451.85-38,168.63-8,807.36

Finding the Fourth Proportional to 25,451.85, 38,168.63 and 8,807.36

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Solution

The fourth proportional to 25,451.85, 38,168.63 and 8,807.36 is: 13,207.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.85 : 38,168.63 = 8,807.36 : x
  2. Step 2: Convert to fraction form
    25,451.85/38,168.63 = 8,807.36/x
  3. Step 3: Cross multiply
    25,451.85x = 38,168.63 × 8,807.36
  4. Step 4: Simplify right side
    25,451.85x = 336,164,949.53
  5. Step 5: Solve for x
    x = 336,164,949.53/25,451.85
  6. Step 6: Final answer
    x = 13,207.88

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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.