Home / 29,380.68-40,542.66-16,805.16

Finding the Fourth Proportional to 29,380.68, 40,542.66 and 16,805.16

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Solution

The fourth proportional to 29,380.68, 40,542.66 and 16,805.16 is: 23,189.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,380.68 : 40,542.66 = 16,805.16 : x
  2. Step 2: Convert to fraction form
    29,380.68/40,542.66 = 16,805.16/x
  3. Step 3: Cross multiply
    29,380.68x = 40,542.66 × 16,805.16
  4. Step 4: Simplify right side
    29,380.68x = 681,325,888.13
  5. Step 5: Solve for x
    x = 681,325,888.13/29,380.68
  6. Step 6: Final answer
    x = 23,189.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.