Home / 25,660.38-38,467.68-13,820.58

Finding the Fourth Proportional to 25,660.38, 38,467.68 and 13,820.58

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Solution

The fourth proportional to 25,660.38, 38,467.68 and 13,820.58 is: 20,718.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,660.38 : 38,467.68 = 13,820.58 : x
  2. Step 2: Convert to fraction form
    25,660.38/38,467.68 = 13,820.58/x
  3. Step 3: Cross multiply
    25,660.38x = 38,467.68 × 13,820.58
  4. Step 4: Simplify right side
    25,660.38x = 531,645,648.85
  5. Step 5: Solve for x
    x = 531,645,648.85/25,660.38
  6. Step 6: Final answer
    x = 20,718.54

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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.