Home / 29,721.96-41,008.12-18,386

Finding the Fourth Proportional to 29,721.96, 41,008.12 and 18,386

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Solution

The fourth proportional to 29,721.96, 41,008.12 and 18,386 is: 25,367.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,721.96 : 41,008.12 = 18,386 : x
  2. Step 2: Convert to fraction form
    29,721.96/41,008.12 = 18,386/x
  3. Step 3: Cross multiply
    29,721.96x = 41,008.12 × 18,386
  4. Step 4: Simplify right side
    29,721.96x = 753,975,294.32
  5. Step 5: Solve for x
    x = 753,975,294.32/29,721.96
  6. Step 6: Final answer
    x = 25,367.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.