Home / 28,338.92-42,514.04-15,876.64

Finding the Fourth Proportional to 28,338.92, 42,514.04 and 15,876.64

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Solution

The fourth proportional to 28,338.92, 42,514.04 and 15,876.64 is: 23,818.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338.92 : 42,514.04 = 15,876.64 : x
  2. Step 2: Convert to fraction form
    28,338.92/42,514.04 = 15,876.64/x
  3. Step 3: Cross multiply
    28,338.92x = 42,514.04 × 15,876.64
  4. Step 4: Simplify right side
    28,338.92x = 674,980,108.03
  5. Step 5: Solve for x
    x = 674,980,108.03/28,338.92
  6. Step 6: Final answer
    x = 23,818.13

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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.