Home / 31,448.09-47,172.39-11,471.90

Finding the Fourth Proportional to 31,448.09, 47,172.39 and 11,471.90

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Solution

The fourth proportional to 31,448.09, 47,172.39 and 11,471.90 is: 17,207.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,448.09 : 47,172.39 = 11,471.90 : x
  2. Step 2: Convert to fraction form
    31,448.09/47,172.39 = 11,471.90/x
  3. Step 3: Cross multiply
    31,448.09x = 47,172.39 × 11,471.90
  4. Step 4: Simplify right side
    31,448.09x = 541,156,850.19
  5. Step 5: Solve for x
    x = 541,156,850.19/31,448.09
  6. Step 6: Final answer
    x = 17,207.94

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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.