Home / 28,770.24-43,151.70-12,136.88

Finding the Fourth Proportional to 28,770.24, 43,151.70 and 12,136.88

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Solution

The fourth proportional to 28,770.24, 43,151.70 and 12,136.88 is: 18,203.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,770.24 : 43,151.70 = 12,136.88 : x
  2. Step 2: Convert to fraction form
    28,770.24/43,151.70 = 12,136.88/x
  3. Step 3: Cross multiply
    28,770.24x = 43,151.70 × 12,136.88
  4. Step 4: Simplify right side
    28,770.24x = 523,727,004.70
  5. Step 5: Solve for x
    x = 523,727,004.70/28,770.24
  6. Step 6: Final answer
    x = 18,203.78

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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.