Home / 20,098.94-30,149.85-5,307.71

Finding the Fourth Proportional to 20,098.94, 30,149.85 and 5,307.71

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Solution

The fourth proportional to 20,098.94, 30,149.85 and 5,307.71 is: 7,961.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,098.94 : 30,149.85 = 5,307.71 : x
  2. Step 2: Convert to fraction form
    20,098.94/30,149.85 = 5,307.71/x
  3. Step 3: Cross multiply
    20,098.94x = 30,149.85 × 5,307.71
  4. Step 4: Simplify right side
    20,098.94x = 160,026,660.34
  5. Step 5: Solve for x
    x = 160,026,660.34/20,098.94
  6. Step 6: Final answer
    x = 7,961.95

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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.