Home / 20,170.26-30,235.95-13,581.74

Finding the Fourth Proportional to 20,170.26, 30,235.95 and 13,581.74

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Solution

The fourth proportional to 20,170.26, 30,235.95 and 13,581.74 is: 20,359.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.26 : 30,235.95 = 13,581.74 : x
  2. Step 2: Convert to fraction form
    20,170.26/30,235.95 = 13,581.74/x
  3. Step 3: Cross multiply
    20,170.26x = 30,235.95 × 13,581.74
  4. Step 4: Simplify right side
    20,170.26x = 410,656,811.55
  5. Step 5: Solve for x
    x = 410,656,811.55/20,170.26
  6. Step 6: Final answer
    x = 20,359.52

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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.