Home / 25,981.67-38,975.22-8,447.39

Finding the Fourth Proportional to 25,981.67, 38,975.22 and 8,447.39

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Solution

The fourth proportional to 25,981.67, 38,975.22 and 8,447.39 is: 12,671.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,981.67 : 38,975.22 = 8,447.39 : x
  2. Step 2: Convert to fraction form
    25,981.67/38,975.22 = 8,447.39/x
  3. Step 3: Cross multiply
    25,981.67x = 38,975.22 × 8,447.39
  4. Step 4: Simplify right side
    25,981.67x = 329,238,883.68
  5. Step 5: Solve for x
    x = 329,238,883.68/25,981.67
  6. Step 6: Final answer
    x = 12,671.97

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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.