Home / 21,343.88-32,015.79-11,862.23

Finding the Fourth Proportional to 21,343.88, 32,015.79 and 11,862.23

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Solution

The fourth proportional to 21,343.88, 32,015.79 and 11,862.23 is: 17,793.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343.88 : 32,015.79 = 11,862.23 : x
  2. Step 2: Convert to fraction form
    21,343.88/32,015.79 = 11,862.23/x
  3. Step 3: Cross multiply
    21,343.88x = 32,015.79 × 11,862.23
  4. Step 4: Simplify right side
    21,343.88x = 379,778,504.53
  5. Step 5: Solve for x
    x = 379,778,504.53/21,343.88
  6. Step 6: Final answer
    x = 17,793.32

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1.5x scale

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.