Home / 20,034.40-30,051.25-8,185.57

Finding the Fourth Proportional to 20,034.40, 30,051.25 and 8,185.57

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Solution

The fourth proportional to 20,034.40, 30,051.25 and 8,185.57 is: 12,278.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,034.40 : 30,051.25 = 8,185.57 : x
  2. Step 2: Convert to fraction form
    20,034.40/30,051.25 = 8,185.57/x
  3. Step 3: Cross multiply
    20,034.40x = 30,051.25 × 8,185.57
  4. Step 4: Simplify right side
    20,034.40x = 245,986,610.46
  5. Step 5: Solve for x
    x = 245,986,610.46/20,034.40
  6. Step 6: Final answer
    x = 12,278.21

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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.