Home / 28,031.62-38,682.66-15,456.28

Finding the Fourth Proportional to 28,031.62, 38,682.66 and 15,456.28

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Solution

The fourth proportional to 28,031.62, 38,682.66 and 15,456.28 is: 21,329.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.62 : 38,682.66 = 15,456.28 : x
  2. Step 2: Convert to fraction form
    28,031.62/38,682.66 = 15,456.28/x
  3. Step 3: Cross multiply
    28,031.62x = 38,682.66 × 15,456.28
  4. Step 4: Simplify right side
    28,031.62x = 597,890,024.10
  5. Step 5: Solve for x
    x = 597,890,024.10/28,031.62
  6. Step 6: Final answer
    x = 21,329.13

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