Home / 17,639.85-26,447.28-15,979.08

Finding the Fourth Proportional to 17,639.85, 26,447.28 and 15,979.08

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Solution

The fourth proportional to 17,639.85, 26,447.28 and 15,979.08 is: 23,957.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,639.85 : 26,447.28 = 15,979.08 : x
  2. Step 2: Convert to fraction form
    17,639.85/26,447.28 = 15,979.08/x
  3. Step 3: Cross multiply
    17,639.85x = 26,447.28 × 15,979.08
  4. Step 4: Simplify right side
    17,639.85x = 422,603,202.90
  5. Step 5: Solve for x
    x = 422,603,202.90/17,639.85
  6. Step 6: Final answer
    x = 23,957.30

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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.