Home / 25,639.80-38,476.79-9,857.86

Finding the Fourth Proportional to 25,639.80, 38,476.79 and 9,857.86

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Solution

The fourth proportional to 25,639.80, 38,476.79 and 9,857.86 is: 14,793.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,639.80 : 38,476.79 = 9,857.86 : x
  2. Step 2: Convert to fraction form
    25,639.80/38,476.79 = 9,857.86/x
  3. Step 3: Cross multiply
    25,639.80x = 38,476.79 × 9,857.86
  4. Step 4: Simplify right side
    25,639.80x = 379,298,663.59
  5. Step 5: Solve for x
    x = 379,298,663.59/25,639.80
  6. Step 6: Final answer
    x = 14,793.36

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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.