Home / 20,741.97-31,117.56-5,949.75

Finding the Fourth Proportional to 20,741.97, 31,117.56 and 5,949.75

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Solution

The fourth proportional to 20,741.97, 31,117.56 and 5,949.75 is: 8,925.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.97 : 31,117.56 = 5,949.75 : x
  2. Step 2: Convert to fraction form
    20,741.97/31,117.56 = 5,949.75/x
  3. Step 3: Cross multiply
    20,741.97x = 31,117.56 × 5,949.75
  4. Step 4: Simplify right side
    20,741.97x = 185,141,702.61
  5. Step 5: Solve for x
    x = 185,141,702.61/20,741.97
  6. Step 6: Final answer
    x = 8,925.95

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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.