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Finding the Fourth Proportional to 20,246.68, 30,372.58 and 7,933.08

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Solution

The fourth proportional to 20,246.68, 30,372.58 and 7,933.08 is: 11,900.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.68 : 30,372.58 = 7,933.08 : x
  2. Step 2: Convert to fraction form
    20,246.68/30,372.58 = 7,933.08/x
  3. Step 3: Cross multiply
    20,246.68x = 30,372.58 × 7,933.08
  4. Step 4: Simplify right side
    20,246.68x = 240,948,106.95
  5. Step 5: Solve for x
    x = 240,948,106.95/20,246.68
  6. Step 6: Final answer
    x = 11,900.62

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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.