Home / 29,138.10-43,707.15-9,149.09

Finding the Fourth Proportional to 29,138.10, 43,707.15 and 9,149.09

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Solution

The fourth proportional to 29,138.10, 43,707.15 and 9,149.09 is: 13,723.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,138.10 : 43,707.15 = 9,149.09 : x
  2. Step 2: Convert to fraction form
    29,138.10/43,707.15 = 9,149.09/x
  3. Step 3: Cross multiply
    29,138.10x = 43,707.15 × 9,149.09
  4. Step 4: Simplify right side
    29,138.10x = 399,880,396.15
  5. Step 5: Solve for x
    x = 399,880,396.15/29,138.10
  6. Step 6: Final answer
    x = 13,723.63

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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.