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Finding the Fourth Proportional to 20,235.98, 30,333.18 and 7,753.10

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Solution

The fourth proportional to 20,235.98, 30,333.18 and 7,753.10 is: 11,621.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.98 : 30,333.18 = 7,753.10 : x
  2. Step 2: Convert to fraction form
    20,235.98/30,333.18 = 7,753.10/x
  3. Step 3: Cross multiply
    20,235.98x = 30,333.18 × 7,753.10
  4. Step 4: Simplify right side
    20,235.98x = 235,176,177.86
  5. Step 5: Solve for x
    x = 235,176,177.86/20,235.98
  6. Step 6: Final answer
    x = 11,621.68

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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.