Home / 20,608.26-28,437.78-12,110.70

Finding the Fourth Proportional to 20,608.26, 28,437.78 and 12,110.70

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Solution

The fourth proportional to 20,608.26, 28,437.78 and 12,110.70 is: 16,711.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.26 : 28,437.78 = 12,110.70 : x
  2. Step 2: Convert to fraction form
    20,608.26/28,437.78 = 12,110.70/x
  3. Step 3: Cross multiply
    20,608.26x = 28,437.78 × 12,110.70
  4. Step 4: Simplify right side
    20,608.26x = 344,401,422.25
  5. Step 5: Solve for x
    x = 344,401,422.25/20,608.26
  6. Step 6: Final answer
    x = 16,711.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.