Home / 28,845.28-43,264.16-9,125.84

Finding the Fourth Proportional to 28,845.28, 43,264.16 and 9,125.84

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Solution

The fourth proportional to 28,845.28, 43,264.16 and 9,125.84 is: 13,687.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,845.28 : 43,264.16 = 9,125.84 : x
  2. Step 2: Convert to fraction form
    28,845.28/43,264.16 = 9,125.84/x
  3. Step 3: Cross multiply
    28,845.28x = 43,264.16 × 9,125.84
  4. Step 4: Simplify right side
    28,845.28x = 394,821,801.89
  5. Step 5: Solve for x
    x = 394,821,801.89/28,845.28
  6. Step 6: Final answer
    x = 13,687.57

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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.