Home / 31,163.28-43,005.20-17,016.08

Finding the Fourth Proportional to 31,163.28, 43,005.20 and 17,016.08

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Solution

The fourth proportional to 31,163.28, 43,005.20 and 17,016.08 is: 23,482.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,163.28 : 43,005.20 = 17,016.08 : x
  2. Step 2: Convert to fraction form
    31,163.28/43,005.20 = 17,016.08/x
  3. Step 3: Cross multiply
    31,163.28x = 43,005.20 × 17,016.08
  4. Step 4: Simplify right side
    31,163.28x = 731,779,923.62
  5. Step 5: Solve for x
    x = 731,779,923.62/31,163.28
  6. Step 6: Final answer
    x = 23,482.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.