Home / 17,989.20-27,122.22-17,666.64

Finding the Fourth Proportional to 17,989.20, 27,122.22 and 17,666.64

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Solution

The fourth proportional to 17,989.20, 27,122.22 and 17,666.64 is: 26,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,989.20 : 27,122.22 = 17,666.64 : x
  2. Step 2: Convert to fraction form
    17,989.20/27,122.22 = 17,666.64/x
  3. Step 3: Cross multiply
    17,989.20x = 27,122.22 × 17,666.64
  4. Step 4: Simplify right side
    17,989.20x = 479,158,496.74
  5. Step 5: Solve for x
    x = 479,158,496.74/17,989.20
  6. Step 6: Final answer
    x = 26,635.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.