Home / 28,759.45-39,687.96-16,184.20

Finding the Fourth Proportional to 28,759.45, 39,687.96 and 16,184.20

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Solution

The fourth proportional to 28,759.45, 39,687.96 and 16,184.20 is: 22,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759.45 : 39,687.96 = 16,184.20 : x
  2. Step 2: Convert to fraction form
    28,759.45/39,687.96 = 16,184.20/x
  3. Step 3: Cross multiply
    28,759.45x = 39,687.96 × 16,184.20
  4. Step 4: Simplify right side
    28,759.45x = 642,317,882.23
  5. Step 5: Solve for x
    x = 642,317,882.23/28,759.45
  6. Step 6: Final answer
    x = 22,334.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.