Home / 45,247.71-67,894.20-20,305.59

Finding the Fourth Proportional to 45,247.71, 67,894.20 and 20,305.59

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Solution

The fourth proportional to 45,247.71, 67,894.20 and 20,305.59 is: 30,468.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,247.71 : 67,894.20 = 20,305.59 : x
  2. Step 2: Convert to fraction form
    45,247.71/67,894.20 = 20,305.59/x
  3. Step 3: Cross multiply
    45,247.71x = 67,894.20 × 20,305.59
  4. Step 4: Simplify right side
    45,247.71x = 1,378,631,788.58
  5. Step 5: Solve for x
    x = 1,378,631,788.58/45,247.71
  6. Step 6: Final answer
    x = 30,468.54

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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.