Home / 34,780.40-47,997.60-21,344.92

Finding the Fourth Proportional to 34,780.40, 47,997.60 and 21,344.92

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Solution

The fourth proportional to 34,780.40, 47,997.60 and 21,344.92 is: 29,456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,780.40 : 47,997.60 = 21,344.92 : x
  2. Step 2: Convert to fraction form
    34,780.40/47,997.60 = 21,344.92/x
  3. Step 3: Cross multiply
    34,780.40x = 47,997.60 × 21,344.92
  4. Step 4: Simplify right side
    34,780.40x = 1,024,504,932.19
  5. Step 5: Solve for x
    x = 1,024,504,932.19/34,780.40
  6. Step 6: Final answer
    x = 29,456.39

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1.5x scale

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.