Home / 25,691.45-38,536.58-11,840.45

Finding the Fourth Proportional to 25,691.45, 38,536.58 and 11,840.45

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Solution

The fourth proportional to 25,691.45, 38,536.58 and 11,840.45 is: 17,760.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.45 : 38,536.58 = 11,840.45 : x
  2. Step 2: Convert to fraction form
    25,691.45/38,536.58 = 11,840.45/x
  3. Step 3: Cross multiply
    25,691.45x = 38,536.58 × 11,840.45
  4. Step 4: Simplify right side
    25,691.45x = 456,290,285.58
  5. Step 5: Solve for x
    x = 456,290,285.58/25,691.45
  6. Step 6: Final answer
    x = 17,760.40

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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.