Home / 25,540.20-38,339.10-19,722.60

Finding the Fourth Proportional to 25,540.20, 38,339.10 and 19,722.60

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Solution

The fourth proportional to 25,540.20, 38,339.10 and 19,722.60 is: 29,606.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,540.20 : 38,339.10 = 19,722.60 : x
  2. Step 2: Convert to fraction form
    25,540.20/38,339.10 = 19,722.60/x
  3. Step 3: Cross multiply
    25,540.20x = 38,339.10 × 19,722.60
  4. Step 4: Simplify right side
    25,540.20x = 756,146,733.66
  5. Step 5: Solve for x
    x = 756,146,733.66/25,540.20
  6. Step 6: Final answer
    x = 29,606.14

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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.