Home / 25,691.28-38,536.37-11,840.28

Finding the Fourth Proportional to 25,691.28, 38,536.37 and 11,840.28

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Solution

The fourth proportional to 25,691.28, 38,536.37 and 11,840.28 is: 17,760.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.28 : 38,536.37 = 11,840.28 : x
  2. Step 2: Convert to fraction form
    25,691.28/38,536.37 = 11,840.28/x
  3. Step 3: Cross multiply
    25,691.28x = 38,536.37 × 11,840.28
  4. Step 4: Simplify right side
    25,691.28x = 456,281,410.98
  5. Step 5: Solve for x
    x = 456,281,410.98/25,691.28
  6. Step 6: Final answer
    x = 17,760.17

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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.