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Finding the Fourth Proportional to 20,449.95, 30,674.93 and 7,300.62

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Solution

The fourth proportional to 20,449.95, 30,674.93 and 7,300.62 is: 10,950.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449.95 : 30,674.93 = 7,300.62 : x
  2. Step 2: Convert to fraction form
    20,449.95/30,674.93 = 7,300.62/x
  3. Step 3: Cross multiply
    20,449.95x = 30,674.93 × 7,300.62
  4. Step 4: Simplify right side
    20,449.95x = 223,945,970.95
  5. Step 5: Solve for x
    x = 223,945,970.95/20,449.95
  6. Step 6: Final answer
    x = 10,950.93

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Similar ratio
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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.