Home / 28,690.20-42,998.65-23,146.16

Finding the Fourth Proportional to 28,690.20, 42,998.65 and 23,146.16

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Solution

The fourth proportional to 28,690.20, 42,998.65 and 23,146.16 is: 34,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,690.20 : 42,998.65 = 23,146.16 : x
  2. Step 2: Convert to fraction form
    28,690.20/42,998.65 = 23,146.16/x
  3. Step 3: Cross multiply
    28,690.20x = 42,998.65 × 23,146.16
  4. Step 4: Simplify right side
    28,690.20x = 995,253,359.83
  5. Step 5: Solve for x
    x = 995,253,359.83/28,690.20
  6. Step 6: Final answer
    x = 34,689.66

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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.