Home / 20,268.80-30,436.94-12,526.82

Finding the Fourth Proportional to 20,268.80, 30,436.94 and 12,526.82

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Solution

The fourth proportional to 20,268.80, 30,436.94 and 12,526.82 is: 18,811.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,268.80 : 30,436.94 = 12,526.82 : x
  2. Step 2: Convert to fraction form
    20,268.80/30,436.94 = 12,526.82/x
  3. Step 3: Cross multiply
    20,268.80x = 30,436.94 × 12,526.82
  4. Step 4: Simplify right side
    20,268.80x = 381,278,068.73
  5. Step 5: Solve for x
    x = 381,278,068.73/20,268.80
  6. Step 6: Final answer
    x = 18,811.08

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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.