Home / 21,042.06-31,569.39-6,251.46

Finding the Fourth Proportional to 21,042.06, 31,569.39 and 6,251.46

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Solution

The fourth proportional to 21,042.06, 31,569.39 and 6,251.46 is: 9,379.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.06 : 31,569.39 = 6,251.46 : x
  2. Step 2: Convert to fraction form
    21,042.06/31,569.39 = 6,251.46/x
  3. Step 3: Cross multiply
    21,042.06x = 31,569.39 × 6,251.46
  4. Step 4: Simplify right side
    21,042.06x = 197,354,778.81
  5. Step 5: Solve for x
    x = 197,354,778.81/21,042.06
  6. Step 6: Final answer
    x = 9,379.06

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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.