Home / 20,240.30-30,360.35-5,447.95

Finding the Fourth Proportional to 20,240.30, 30,360.35 and 5,447.95

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Solution

The fourth proportional to 20,240.30, 30,360.35 and 5,447.95 is: 8,171.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.30 : 30,360.35 = 5,447.95 : x
  2. Step 2: Convert to fraction form
    20,240.30/30,360.35 = 5,447.95/x
  3. Step 3: Cross multiply
    20,240.30x = 30,360.35 × 5,447.95
  4. Step 4: Simplify right side
    20,240.30x = 165,401,606.50
  5. Step 5: Solve for x
    x = 165,401,606.50/20,240.30
  6. Step 6: Final answer
    x = 8,171.89

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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.