Home / 21,759.12-32,543.06-18,945.18

Finding the Fourth Proportional to 21,759.12, 32,543.06 and 18,945.18

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Solution

The fourth proportional to 21,759.12, 32,543.06 and 18,945.18 is: 28,334.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,759.12 : 32,543.06 = 18,945.18 : x
  2. Step 2: Convert to fraction form
    21,759.12/32,543.06 = 18,945.18/x
  3. Step 3: Cross multiply
    21,759.12x = 32,543.06 × 18,945.18
  4. Step 4: Simplify right side
    21,759.12x = 616,534,034.72
  5. Step 5: Solve for x
    x = 616,534,034.72/21,759.12
  6. Step 6: Final answer
    x = 28,334.51

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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.