Home / 31,948.40-47,879.40-28,233.20

Finding the Fourth Proportional to 31,948.40, 47,879.40 and 28,233.20

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Solution

The fourth proportional to 31,948.40, 47,879.40 and 28,233.20 is: 42,311.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,948.40 : 47,879.40 = 28,233.20 : x
  2. Step 2: Convert to fraction form
    31,948.40/47,879.40 = 28,233.20/x
  3. Step 3: Cross multiply
    31,948.40x = 47,879.40 × 28,233.20
  4. Step 4: Simplify right side
    31,948.40x = 1,351,788,676.08
  5. Step 5: Solve for x
    x = 1,351,788,676.08/31,948.40
  6. Step 6: Final answer
    x = 42,311.62

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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.