Home / 25,639.08-38,475.78-8,999.20

Finding the Fourth Proportional to 25,639.08, 38,475.78 and 8,999.20

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Solution

The fourth proportional to 25,639.08, 38,475.78 and 8,999.20 is: 13,504.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,639.08 : 38,475.78 = 8,999.20 : x
  2. Step 2: Convert to fraction form
    25,639.08/38,475.78 = 8,999.20/x
  3. Step 3: Cross multiply
    25,639.08x = 38,475.78 × 8,999.20
  4. Step 4: Simplify right side
    25,639.08x = 346,251,239.38
  5. Step 5: Solve for x
    x = 346,251,239.38/25,639.08
  6. Step 6: Final answer
    x = 13,504.82

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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.