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Finding the Fourth Proportional to 20,574.52, 30,861.77 and 7,244.37

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Solution

The fourth proportional to 20,574.52, 30,861.77 and 7,244.37 is: 10,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.52 : 30,861.77 = 7,244.37 : x
  2. Step 2: Convert to fraction form
    20,574.52/30,861.77 = 7,244.37/x
  3. Step 3: Cross multiply
    20,574.52x = 30,861.77 × 7,244.37
  4. Step 4: Simplify right side
    20,574.52x = 223,574,080.73
  5. Step 5: Solve for x
    x = 223,574,080.73/20,574.52
  6. Step 6: Final answer
    x = 10,866.55

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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.