Home / 29,727.66-41,028.36-18,400.80

Finding the Fourth Proportional to 29,727.66, 41,028.36 and 18,400.80

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Solution

The fourth proportional to 29,727.66, 41,028.36 and 18,400.80 is: 25,395.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,727.66 : 41,028.36 = 18,400.80 : x
  2. Step 2: Convert to fraction form
    29,727.66/41,028.36 = 18,400.80/x
  3. Step 3: Cross multiply
    29,727.66x = 41,028.36 × 18,400.80
  4. Step 4: Simplify right side
    29,727.66x = 754,954,646.69
  5. Step 5: Solve for x
    x = 754,954,646.69/29,727.66
  6. Step 6: Final answer
    x = 25,395.70

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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.