Home / 25,429.94-38,145.42-17,902.70

Finding the Fourth Proportional to 25,429.94, 38,145.42 and 17,902.70

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Solution

The fourth proportional to 25,429.94, 38,145.42 and 17,902.70 is: 26,854.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,429.94 : 38,145.42 = 17,902.70 : x
  2. Step 2: Convert to fraction form
    25,429.94/38,145.42 = 17,902.70/x
  3. Step 3: Cross multiply
    25,429.94x = 38,145.42 × 17,902.70
  4. Step 4: Simplify right side
    25,429.94x = 682,906,010.63
  5. Step 5: Solve for x
    x = 682,906,010.63/25,429.94
  6. Step 6: Final answer
    x = 26,854.41

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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.