Home / 20,612.56-30,842.24-12,297.10

Finding the Fourth Proportional to 20,612.56, 30,842.24 and 12,297.10

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Solution

The fourth proportional to 20,612.56, 30,842.24 and 12,297.10 is: 18,399.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612.56 : 30,842.24 = 12,297.10 : x
  2. Step 2: Convert to fraction form
    20,612.56/30,842.24 = 12,297.10/x
  3. Step 3: Cross multiply
    20,612.56x = 30,842.24 × 12,297.10
  4. Step 4: Simplify right side
    20,612.56x = 379,270,109.50
  5. Step 5: Solve for x
    x = 379,270,109.50/20,612.56
  6. Step 6: Final answer
    x = 18,399.95

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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.