Home / 31,743.14-47,615.10-21,879.77

Finding the Fourth Proportional to 31,743.14, 47,615.10 and 21,879.77

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Solution

The fourth proportional to 31,743.14, 47,615.10 and 21,879.77 is: 32,819.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,743.14 : 47,615.10 = 21,879.77 : x
  2. Step 2: Convert to fraction form
    31,743.14/47,615.10 = 21,879.77/x
  3. Step 3: Cross multiply
    31,743.14x = 47,615.10 × 21,879.77
  4. Step 4: Simplify right side
    31,743.14x = 1,041,807,198.45
  5. Step 5: Solve for x
    x = 1,041,807,198.45/31,743.14
  6. Step 6: Final answer
    x = 32,819.92

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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.