Home / 28,488.24-42,731.88-10,961.86

Finding the Fourth Proportional to 28,488.24, 42,731.88 and 10,961.86

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Solution

The fourth proportional to 28,488.24, 42,731.88 and 10,961.86 is: 16,442.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,488.24 : 42,731.88 = 10,961.86 : x
  2. Step 2: Convert to fraction form
    28,488.24/42,731.88 = 10,961.86/x
  3. Step 3: Cross multiply
    28,488.24x = 42,731.88 × 10,961.86
  4. Step 4: Simplify right side
    28,488.24x = 468,420,886.10
  5. Step 5: Solve for x
    x = 468,420,886.10/28,488.24
  6. Step 6: Final answer
    x = 16,442.61

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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.