Home / 22,170.68-30,423.34-20,165.96

Finding the Fourth Proportional to 22,170.68, 30,423.34 and 20,165.96

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Solution

The fourth proportional to 22,170.68, 30,423.34 and 20,165.96 is: 27,672.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,170.68 : 30,423.34 = 20,165.96 : x
  2. Step 2: Convert to fraction form
    22,170.68/30,423.34 = 20,165.96/x
  3. Step 3: Cross multiply
    22,170.68x = 30,423.34 × 20,165.96
  4. Step 4: Simplify right side
    22,170.68x = 613,515,857.51
  5. Step 5: Solve for x
    x = 613,515,857.51/22,170.68
  6. Step 6: Final answer
    x = 27,672.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.