Home / 28,865.88-43,269.12-15,714.72

Finding the Fourth Proportional to 28,865.88, 43,269.12 and 15,714.72

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Solution

The fourth proportional to 28,865.88, 43,269.12 and 15,714.72 is: 23,555.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865.88 : 43,269.12 = 15,714.72 : x
  2. Step 2: Convert to fraction form
    28,865.88/43,269.12 = 15,714.72/x
  3. Step 3: Cross multiply
    28,865.88x = 43,269.12 × 15,714.72
  4. Step 4: Simplify right side
    28,865.88x = 679,962,105.45
  5. Step 5: Solve for x
    x = 679,962,105.45/28,865.88
  6. Step 6: Final answer
    x = 23,555.91

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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.