Home / 25,691.50-38,476.77-21,558.07

Finding the Fourth Proportional to 25,691.50, 38,476.77 and 21,558.07

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Solution

The fourth proportional to 25,691.50, 38,476.77 and 21,558.07 is: 32,286.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.50 : 38,476.77 = 21,558.07 : x
  2. Step 2: Convert to fraction form
    25,691.50/38,476.77 = 21,558.07/x
  3. Step 3: Cross multiply
    25,691.50x = 38,476.77 × 21,558.07
  4. Step 4: Simplify right side
    25,691.50x = 829,484,901.03
  5. Step 5: Solve for x
    x = 829,484,901.03/25,691.50
  6. Step 6: Final answer
    x = 32,286.36

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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.