Home / 28,179.32-38,891.91-16,857.65

Finding the Fourth Proportional to 28,179.32, 38,891.91 and 16,857.65

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Solution

The fourth proportional to 28,179.32, 38,891.91 and 16,857.65 is: 23,266.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179.32 : 38,891.91 = 16,857.65 : x
  2. Step 2: Convert to fraction form
    28,179.32/38,891.91 = 16,857.65/x
  3. Step 3: Cross multiply
    28,179.32x = 38,891.91 × 16,857.65
  4. Step 4: Simplify right side
    28,179.32x = 655,626,206.61
  5. Step 5: Solve for x
    x = 655,626,206.61/28,179.32
  6. Step 6: Final answer
    x = 23,266.22

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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.