Home / 25,286.05-34,938.05-20,020.84

Finding the Fourth Proportional to 25,286.05, 34,938.05 and 20,020.84

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Solution

The fourth proportional to 25,286.05, 34,938.05 and 20,020.84 is: 27,663.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,286.05 : 34,938.05 = 20,020.84 : x
  2. Step 2: Convert to fraction form
    25,286.05/34,938.05 = 20,020.84/x
  3. Step 3: Cross multiply
    25,286.05x = 34,938.05 × 20,020.84
  4. Step 4: Simplify right side
    25,286.05x = 699,489,108.96
  5. Step 5: Solve for x
    x = 699,489,108.96/25,286.05
  6. Step 6: Final answer
    x = 27,663.04

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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.