Home / 43,616.38-65,339.35-20,787.75

Finding the Fourth Proportional to 43,616.38, 65,339.35 and 20,787.75

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Solution

The fourth proportional to 43,616.38, 65,339.35 and 20,787.75 is: 31,141.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,616.38 : 65,339.35 = 20,787.75 : x
  2. Step 2: Convert to fraction form
    43,616.38/65,339.35 = 20,787.75/x
  3. Step 3: Cross multiply
    43,616.38x = 65,339.35 × 20,787.75
  4. Step 4: Simplify right side
    43,616.38x = 1,358,258,072.96
  5. Step 5: Solve for x
    x = 1,358,258,072.96/43,616.38
  6. Step 6: Final answer
    x = 31,141.01

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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.