Home / 18,016.21-27,024.45-17,990.29

Finding the Fourth Proportional to 18,016.21, 27,024.45 and 17,990.29

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Solution

The fourth proportional to 18,016.21, 27,024.45 and 17,990.29 is: 26,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,016.21 : 27,024.45 = 17,990.29 : x
  2. Step 2: Convert to fraction form
    18,016.21/27,024.45 = 17,990.29/x
  3. Step 3: Cross multiply
    18,016.21x = 27,024.45 × 17,990.29
  4. Step 4: Simplify right side
    18,016.21x = 486,177,692.59
  5. Step 5: Solve for x
    x = 486,177,692.59/18,016.21
  6. Step 6: Final answer
    x = 26,985.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.