Home / 43,827.54-65,689.39-20,115.10

Finding the Fourth Proportional to 43,827.54, 65,689.39 and 20,115.10

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Solution

The fourth proportional to 43,827.54, 65,689.39 and 20,115.10 is: 30,148.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,827.54 : 65,689.39 = 20,115.10 : x
  2. Step 2: Convert to fraction form
    43,827.54/65,689.39 = 20,115.10/x
  3. Step 3: Cross multiply
    43,827.54x = 65,689.39 × 20,115.10
  4. Step 4: Simplify right side
    43,827.54x = 1,321,348,648.79
  5. Step 5: Solve for x
    x = 1,321,348,648.79/43,827.54
  6. Step 6: Final answer
    x = 30,148.82

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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.