Home / 25,196.12-34,778.62-15,758.68

Finding the Fourth Proportional to 25,196.12, 34,778.62 and 15,758.68

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Solution

The fourth proportional to 25,196.12, 34,778.62 and 15,758.68 is: 21,751.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,196.12 : 34,778.62 = 15,758.68 : x
  2. Step 2: Convert to fraction form
    25,196.12/34,778.62 = 15,758.68/x
  3. Step 3: Cross multiply
    25,196.12x = 34,778.62 × 15,758.68
  4. Step 4: Simplify right side
    25,196.12x = 548,065,143.42
  5. Step 5: Solve for x
    x = 548,065,143.42/25,196.12
  6. Step 6: Final answer
    x = 21,751.97

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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.