Home / 28,882.20-43,331.40-12,250.20

Finding the Fourth Proportional to 28,882.20, 43,331.40 and 12,250.20

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Solution

The fourth proportional to 28,882.20, 43,331.40 and 12,250.20 is: 18,378.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,882.20 : 43,331.40 = 12,250.20 : x
  2. Step 2: Convert to fraction form
    28,882.20/43,331.40 = 12,250.20/x
  3. Step 3: Cross multiply
    28,882.20x = 43,331.40 × 12,250.20
  4. Step 4: Simplify right side
    28,882.20x = 530,818,316.28
  5. Step 5: Solve for x
    x = 530,818,316.28/28,882.20
  6. Step 6: Final answer
    x = 18,378.74

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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.