Home / 25,719.20-38,538.90-17,837.09

Finding the Fourth Proportional to 25,719.20, 38,538.90 and 17,837.09

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Solution

The fourth proportional to 25,719.20, 38,538.90 and 17,837.09 is: 26,727.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,719.20 : 38,538.90 = 17,837.09 : x
  2. Step 2: Convert to fraction form
    25,719.20/38,538.90 = 17,837.09/x
  3. Step 3: Cross multiply
    25,719.20x = 38,538.90 × 17,837.09
  4. Step 4: Simplify right side
    25,719.20x = 687,421,635.11
  5. Step 5: Solve for x
    x = 687,421,635.11/25,719.20
  6. Step 6: Final answer
    x = 26,727.96

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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.