Home / 19,927.38-29,890.98-5,135.04

Finding the Fourth Proportional to 19,927.38, 29,890.98 and 5,135.04

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Solution

The fourth proportional to 19,927.38, 29,890.98 and 5,135.04 is: 7,702.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,927.38 : 29,890.98 = 5,135.04 : x
  2. Step 2: Convert to fraction form
    19,927.38/29,890.98 = 5,135.04/x
  3. Step 3: Cross multiply
    19,927.38x = 29,890.98 × 5,135.04
  4. Step 4: Simplify right side
    19,927.38x = 153,491,377.94
  5. Step 5: Solve for x
    x = 153,491,377.94/19,927.38
  6. Step 6: Final answer
    x = 7,702.54

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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.