Home / 20,974.41-31,455.95-6,179.49

Finding the Fourth Proportional to 20,974.41, 31,455.95 and 6,179.49

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Solution

The fourth proportional to 20,974.41, 31,455.95 and 6,179.49 is: 9,267.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,974.41 : 31,455.95 = 6,179.49 : x
  2. Step 2: Convert to fraction form
    20,974.41/31,455.95 = 6,179.49/x
  3. Step 3: Cross multiply
    20,974.41x = 31,455.95 × 6,179.49
  4. Step 4: Simplify right side
    20,974.41x = 194,381,697.57
  5. Step 5: Solve for x
    x = 194,381,697.57/20,974.41
  6. Step 6: Final answer
    x = 9,267.56

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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.