Home / 28,808.20-43,212.30-8,031.70

Finding the Fourth Proportional to 28,808.20, 43,212.30 and 8,031.70

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Solution

The fourth proportional to 28,808.20, 43,212.30 and 8,031.70 is: 12,047.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808.20 : 43,212.30 = 8,031.70 : x
  2. Step 2: Convert to fraction form
    28,808.20/43,212.30 = 8,031.70/x
  3. Step 3: Cross multiply
    28,808.20x = 43,212.30 × 8,031.70
  4. Step 4: Simplify right side
    28,808.20x = 347,068,229.91
  5. Step 5: Solve for x
    x = 347,068,229.91/28,808.20
  6. Step 6: Final answer
    x = 12,047.55

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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.