Home / 30,043.20-45,067.50-7,856.22

Finding the Fourth Proportional to 30,043.20, 45,067.50 and 7,856.22

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Solution

The fourth proportional to 30,043.20, 45,067.50 and 7,856.22 is: 11,785.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,043.20 : 45,067.50 = 7,856.22 : x
  2. Step 2: Convert to fraction form
    30,043.20/45,067.50 = 7,856.22/x
  3. Step 3: Cross multiply
    30,043.20x = 45,067.50 × 7,856.22
  4. Step 4: Simplify right side
    30,043.20x = 354,060,194.85
  5. Step 5: Solve for x
    x = 354,060,194.85/30,043.20
  6. Step 6: Final answer
    x = 11,785.04

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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.