Home / 43,685.30-65,513.55-15,979.70

Finding the Fourth Proportional to 43,685.30, 65,513.55 and 15,979.70

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Solution

The fourth proportional to 43,685.30, 65,513.55 and 15,979.70 is: 23,964.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,685.30 : 65,513.55 = 15,979.70 : x
  2. Step 2: Convert to fraction form
    43,685.30/65,513.55 = 15,979.70/x
  3. Step 3: Cross multiply
    43,685.30x = 65,513.55 × 15,979.70
  4. Step 4: Simplify right side
    43,685.30x = 1,046,886,874.94
  5. Step 5: Solve for x
    x = 1,046,886,874.94/43,685.30
  6. Step 6: Final answer
    x = 23,964.28

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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.