Home / 20,125.26-30,185.46-8,432.10

Finding the Fourth Proportional to 20,125.26, 30,185.46 and 8,432.10

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Solution

The fourth proportional to 20,125.26, 30,185.46 and 8,432.10 is: 12,647.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.26 : 30,185.46 = 8,432.10 : x
  2. Step 2: Convert to fraction form
    20,125.26/30,185.46 = 8,432.10/x
  3. Step 3: Cross multiply
    20,125.26x = 30,185.46 × 8,432.10
  4. Step 4: Simplify right side
    20,125.26x = 254,526,817.27
  5. Step 5: Solve for x
    x = 254,526,817.27/20,125.26
  6. Step 6: Final answer
    x = 12,647.13

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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.