Home / 21,301.20-31,951.64-5,504.88

Finding the Fourth Proportional to 21,301.20, 31,951.64 and 5,504.88

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Solution

The fourth proportional to 21,301.20, 31,951.64 and 5,504.88 is: 8,257.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,301.20 : 31,951.64 = 5,504.88 : x
  2. Step 2: Convert to fraction form
    21,301.20/31,951.64 = 5,504.88/x
  3. Step 3: Cross multiply
    21,301.20x = 31,951.64 × 5,504.88
  4. Step 4: Simplify right side
    21,301.20x = 175,889,944.00
  5. Step 5: Solve for x
    x = 175,889,944.00/21,301.20
  6. Step 6: Final answer
    x = 8,257.28

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1.5x scale

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.