Home / 16,821.28-25,235.85-5,134.48

Finding the Fourth Proportional to 16,821.28, 25,235.85 and 5,134.48

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Solution

The fourth proportional to 16,821.28, 25,235.85 and 5,134.48 is: 7,702.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.28 : 25,235.85 = 5,134.48 : x
  2. Step 2: Convert to fraction form
    16,821.28/25,235.85 = 5,134.48/x
  3. Step 3: Cross multiply
    16,821.28x = 25,235.85 × 5,134.48
  4. Step 4: Simplify right side
    16,821.28x = 129,572,967.11
  5. Step 5: Solve for x
    x = 129,572,967.11/16,821.28
  6. Step 6: Final answer
    x = 7,702.92

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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.