Home / 20,674.42-28,535.38-12,610.80

Finding the Fourth Proportional to 20,674.42, 28,535.38 and 12,610.80

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Solution

The fourth proportional to 20,674.42, 28,535.38 and 12,610.80 is: 17,405.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.42 : 28,535.38 = 12,610.80 : x
  2. Step 2: Convert to fraction form
    20,674.42/28,535.38 = 12,610.80/x
  3. Step 3: Cross multiply
    20,674.42x = 28,535.38 × 12,610.80
  4. Step 4: Simplify right side
    20,674.42x = 359,853,938.58
  5. Step 5: Solve for x
    x = 359,853,938.58/20,674.42
  6. Step 6: Final answer
    x = 17,405.76

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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.