Home / 20,525.10-30,805.65-12,194.70

Finding the Fourth Proportional to 20,525.10, 30,805.65 and 12,194.70

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Solution

The fourth proportional to 20,525.10, 30,805.65 and 12,194.70 is: 18,302.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,525.10 : 30,805.65 = 12,194.70 : x
  2. Step 2: Convert to fraction form
    20,525.10/30,805.65 = 12,194.70/x
  3. Step 3: Cross multiply
    20,525.10x = 30,805.65 × 12,194.70
  4. Step 4: Simplify right side
    20,525.10x = 375,665,660.06
  5. Step 5: Solve for x
    x = 375,665,660.06/20,525.10
  6. Step 6: Final answer
    x = 18,302.74

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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.