Home / 18,759.45-28,139.25-15,232.76

Finding the Fourth Proportional to 18,759.45, 28,139.25 and 15,232.76

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Solution

The fourth proportional to 18,759.45, 28,139.25 and 15,232.76 is: 22,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759.45 : 28,139.25 = 15,232.76 : x
  2. Step 2: Convert to fraction form
    18,759.45/28,139.25 = 15,232.76/x
  3. Step 3: Cross multiply
    18,759.45x = 28,139.25 × 15,232.76
  4. Step 4: Simplify right side
    18,759.45x = 428,638,378.09
  5. Step 5: Solve for x
    x = 428,638,378.09/18,759.45
  6. Step 6: Final answer
    x = 22,849.20

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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.