Home / 16,918.88-23,350.78-16,171.35

Finding the Fourth Proportional to 16,918.88, 23,350.78 and 16,171.35

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Solution

The fourth proportional to 16,918.88, 23,350.78 and 16,171.35 is: 22,319.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,918.88 : 23,350.78 = 16,171.35 : x
  2. Step 2: Convert to fraction form
    16,918.88/23,350.78 = 16,171.35/x
  3. Step 3: Cross multiply
    16,918.88x = 23,350.78 × 16,171.35
  4. Step 4: Simplify right side
    16,918.88x = 377,613,568.80
  5. Step 5: Solve for x
    x = 377,613,568.80/16,918.88
  6. Step 6: Final answer
    x = 22,319.07

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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.