Home / 21,169.50-31,753.23-5,374.98

Finding the Fourth Proportional to 21,169.50, 31,753.23 and 5,374.98

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Solution

The fourth proportional to 21,169.50, 31,753.23 and 5,374.98 is: 8,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,169.50 : 31,753.23 = 5,374.98 : x
  2. Step 2: Convert to fraction form
    21,169.50/31,753.23 = 5,374.98/x
  3. Step 3: Cross multiply
    21,169.50x = 31,753.23 × 5,374.98
  4. Step 4: Simplify right side
    21,169.50x = 170,672,976.19
  5. Step 5: Solve for x
    x = 170,672,976.19/21,169.50
  6. Step 6: Final answer
    x = 8,062.21

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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.