Home / 25,981.09-38,975.72-8,446.82

Finding the Fourth Proportional to 25,981.09, 38,975.72 and 8,446.82

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Solution

The fourth proportional to 25,981.09, 38,975.72 and 8,446.82 is: 12,671.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,981.09 : 38,975.72 = 8,446.82 : x
  2. Step 2: Convert to fraction form
    25,981.09/38,975.72 = 8,446.82/x
  3. Step 3: Cross multiply
    25,981.09x = 38,975.72 × 8,446.82
  4. Step 4: Simplify right side
    25,981.09x = 329,220,654.10
  5. Step 5: Solve for x
    x = 329,220,654.10/25,981.09
  6. Step 6: Final answer
    x = 12,671.55

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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.