Home / 25,656.72-38,496.96-10,869.12

Finding the Fourth Proportional to 25,656.72, 38,496.96 and 10,869.12

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Solution

The fourth proportional to 25,656.72, 38,496.96 and 10,869.12 is: 16,308.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,656.72 : 38,496.96 = 10,869.12 : x
  2. Step 2: Convert to fraction form
    25,656.72/38,496.96 = 10,869.12/x
  3. Step 3: Cross multiply
    25,656.72x = 38,496.96 × 10,869.12
  4. Step 4: Simplify right side
    25,656.72x = 418,428,077.88
  5. Step 5: Solve for x
    x = 418,428,077.88/25,656.72
  6. Step 6: Final answer
    x = 16,308.71

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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.