Home / 20,554.39-30,834.80-8,708.19

Finding the Fourth Proportional to 20,554.39, 30,834.80 and 8,708.19

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Solution

The fourth proportional to 20,554.39, 30,834.80 and 8,708.19 is: 13,063.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.39 : 30,834.80 = 8,708.19 : x
  2. Step 2: Convert to fraction form
    20,554.39/30,834.80 = 8,708.19/x
  3. Step 3: Cross multiply
    20,554.39x = 30,834.80 × 8,708.19
  4. Step 4: Simplify right side
    20,554.39x = 268,515,318.78
  5. Step 5: Solve for x
    x = 268,515,318.78/20,554.39
  6. Step 6: Final answer
    x = 13,063.65

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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.