Home / 20,290.73-30,436.09-8,444.27

Finding the Fourth Proportional to 20,290.73, 30,436.09 and 8,444.27

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Solution

The fourth proportional to 20,290.73, 30,436.09 and 8,444.27 is: 12,666.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,290.73 : 30,436.09 = 8,444.27 : x
  2. Step 2: Convert to fraction form
    20,290.73/30,436.09 = 8,444.27/x
  3. Step 3: Cross multiply
    20,290.73x = 30,436.09 × 8,444.27
  4. Step 4: Simplify right side
    20,290.73x = 257,010,616.68
  5. Step 5: Solve for x
    x = 257,010,616.68/20,290.73
  6. Step 6: Final answer
    x = 12,666.41

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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.