Home / 18,891.06-28,449.03-16,455.28

Finding the Fourth Proportional to 18,891.06, 28,449.03 and 16,455.28

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Solution

The fourth proportional to 18,891.06, 28,449.03 and 16,455.28 is: 24,780.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.06 : 28,449.03 = 16,455.28 : x
  2. Step 2: Convert to fraction form
    18,891.06/28,449.03 = 16,455.28/x
  3. Step 3: Cross multiply
    18,891.06x = 28,449.03 × 16,455.28
  4. Step 4: Simplify right side
    18,891.06x = 468,136,754.38
  5. Step 5: Solve for x
    x = 468,136,754.38/18,891.06
  6. Step 6: Final answer
    x = 24,780.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.