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Finding the Fourth Proportional to 20,754.70, 31,132.05 and 5,964.10

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Solution

The fourth proportional to 20,754.70, 31,132.05 and 5,964.10 is: 8,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754.70 : 31,132.05 = 5,964.10 : x
  2. Step 2: Convert to fraction form
    20,754.70/31,132.05 = 5,964.10/x
  3. Step 3: Cross multiply
    20,754.70x = 31,132.05 × 5,964.10
  4. Step 4: Simplify right side
    20,754.70x = 185,674,659.41
  5. Step 5: Solve for x
    x = 185,674,659.41/20,754.70
  6. Step 6: Final answer
    x = 8,946.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.