Home / 28,685.13-43,024.24-7,626.75

Finding the Fourth Proportional to 28,685.13, 43,024.24 and 7,626.75

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Solution

The fourth proportional to 28,685.13, 43,024.24 and 7,626.75 is: 11,439.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685.13 : 43,024.24 = 7,626.75 : x
  2. Step 2: Convert to fraction form
    28,685.13/43,024.24 = 7,626.75/x
  3. Step 3: Cross multiply
    28,685.13x = 43,024.24 × 7,626.75
  4. Step 4: Simplify right side
    28,685.13x = 328,135,122.42
  5. Step 5: Solve for x
    x = 328,135,122.42/28,685.13
  6. Step 6: Final answer
    x = 11,439.21

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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.