Home / 21,300.26-31,926.48-7,247.16

Finding the Fourth Proportional to 21,300.26, 31,926.48 and 7,247.16

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Solution

The fourth proportional to 21,300.26, 31,926.48 and 7,247.16 is: 10,862.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,300.26 : 31,926.48 = 7,247.16 : x
  2. Step 2: Convert to fraction form
    21,300.26/31,926.48 = 7,247.16/x
  3. Step 3: Cross multiply
    21,300.26x = 31,926.48 × 7,247.16
  4. Step 4: Simplify right side
    21,300.26x = 231,376,308.80
  5. Step 5: Solve for x
    x = 231,376,308.80/21,300.26
  6. Step 6: Final answer
    x = 10,862.61

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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.