Home / 21,174.26-31,753.04-9,328.54

Finding the Fourth Proportional to 21,174.26, 31,753.04 and 9,328.54

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Solution

The fourth proportional to 21,174.26, 31,753.04 and 9,328.54 is: 13,989.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174.26 : 31,753.04 = 9,328.54 : x
  2. Step 2: Convert to fraction form
    21,174.26/31,753.04 = 9,328.54/x
  3. Step 3: Cross multiply
    21,174.26x = 31,753.04 × 9,328.54
  4. Step 4: Simplify right side
    21,174.26x = 296,209,552.82
  5. Step 5: Solve for x
    x = 296,209,552.82/21,174.26
  6. Step 6: Final answer
    x = 13,989.13

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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.