Home / 28,903.28-43,354.94-8,126.78

Finding the Fourth Proportional to 28,903.28, 43,354.94 and 8,126.78

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Solution

The fourth proportional to 28,903.28, 43,354.94 and 8,126.78 is: 12,190.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.28 : 43,354.94 = 8,126.78 : x
  2. Step 2: Convert to fraction form
    28,903.28/43,354.94 = 8,126.78/x
  3. Step 3: Cross multiply
    28,903.28x = 43,354.94 × 8,126.78
  4. Step 4: Simplify right side
    28,903.28x = 352,336,167.68
  5. Step 5: Solve for x
    x = 352,336,167.68/28,903.28
  6. Step 6: Final answer
    x = 12,190.18

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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.