Home / 21,851.25-32,728.88-18,060.12

Finding the Fourth Proportional to 21,851.25, 32,728.88 and 18,060.12

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Solution

The fourth proportional to 21,851.25, 32,728.88 and 18,060.12 is: 27,050.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851.25 : 32,728.88 = 18,060.12 : x
  2. Step 2: Convert to fraction form
    21,851.25/32,728.88 = 18,060.12/x
  3. Step 3: Cross multiply
    21,851.25x = 32,728.88 × 18,060.12
  4. Step 4: Simplify right side
    21,851.25x = 591,087,409.97
  5. Step 5: Solve for x
    x = 591,087,409.97/21,851.25
  6. Step 6: Final answer
    x = 27,050.51

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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.