Home / 20,170.88-27,864.26-16,164.32

Finding the Fourth Proportional to 20,170.88, 27,864.26 and 16,164.32

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Solution

The fourth proportional to 20,170.88, 27,864.26 and 16,164.32 is: 22,329.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.88 : 27,864.26 = 16,164.32 : x
  2. Step 2: Convert to fraction form
    20,170.88/27,864.26 = 16,164.32/x
  3. Step 3: Cross multiply
    20,170.88x = 27,864.26 × 16,164.32
  4. Step 4: Simplify right side
    20,170.88x = 450,406,815.20
  5. Step 5: Solve for x
    x = 450,406,815.20/20,170.88
  6. Step 6: Final answer
    x = 22,329.56

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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.