Home / 21,042.98-31,569.33-6,251.57

Finding the Fourth Proportional to 21,042.98, 31,569.33 and 6,251.57

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Solution

The fourth proportional to 21,042.98, 31,569.33 and 6,251.57 is: 9,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.98 : 31,569.33 = 6,251.57 : x
  2. Step 2: Convert to fraction form
    21,042.98/31,569.33 = 6,251.57/x
  3. Step 3: Cross multiply
    21,042.98x = 31,569.33 × 6,251.57
  4. Step 4: Simplify right side
    21,042.98x = 197,357,876.35
  5. Step 5: Solve for x
    x = 197,357,876.35/21,042.98
  6. Step 6: Final answer
    x = 9,378.80

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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.