Home / 25,458.06-38,179.80-8,813.78

Finding the Fourth Proportional to 25,458.06, 38,179.80 and 8,813.78

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Solution

The fourth proportional to 25,458.06, 38,179.80 and 8,813.78 is: 13,218.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,458.06 : 38,179.80 = 8,813.78 : x
  2. Step 2: Convert to fraction form
    25,458.06/38,179.80 = 8,813.78/x
  3. Step 3: Cross multiply
    25,458.06x = 38,179.80 × 8,813.78
  4. Step 4: Simplify right side
    25,458.06x = 336,508,166.75
  5. Step 5: Solve for x
    x = 336,508,166.75/25,458.06
  6. Step 6: Final answer
    x = 13,218.14

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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.