Home / 21,851.40-32,781.66-7,061.16

Finding the Fourth Proportional to 21,851.40, 32,781.66 and 7,061.16

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Solution

The fourth proportional to 21,851.40, 32,781.66 and 7,061.16 is: 10,593.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851.40 : 32,781.66 = 7,061.16 : x
  2. Step 2: Convert to fraction form
    21,851.40/32,781.66 = 7,061.16/x
  3. Step 3: Cross multiply
    21,851.40x = 32,781.66 × 7,061.16
  4. Step 4: Simplify right side
    21,851.40x = 231,476,546.33
  5. Step 5: Solve for x
    x = 231,476,546.33/21,851.40
  6. Step 6: Final answer
    x = 10,593.21

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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.