Home / 31,948.68-47,821.32-17,865.66

Finding the Fourth Proportional to 31,948.68, 47,821.32 and 17,865.66

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Solution

The fourth proportional to 31,948.68, 47,821.32 and 17,865.66 is: 26,741.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,948.68 : 47,821.32 = 17,865.66 : x
  2. Step 2: Convert to fraction form
    31,948.68/47,821.32 = 17,865.66/x
  3. Step 3: Cross multiply
    31,948.68x = 47,821.32 × 17,865.66
  4. Step 4: Simplify right side
    31,948.68x = 854,359,443.87
  5. Step 5: Solve for x
    x = 854,359,443.87/31,948.68
  6. Step 6: Final answer
    x = 26,741.62

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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.