Home / 22,126.18-30,504.26-21,438.22

Finding the Fourth Proportional to 22,126.18, 30,504.26 and 21,438.22

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Solution

The fourth proportional to 22,126.18, 30,504.26 and 21,438.22 is: 29,555.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,126.18 : 30,504.26 = 21,438.22 : x
  2. Step 2: Convert to fraction form
    22,126.18/30,504.26 = 21,438.22/x
  3. Step 3: Cross multiply
    22,126.18x = 30,504.26 × 21,438.22
  4. Step 4: Simplify right side
    22,126.18x = 653,957,014.15
  5. Step 5: Solve for x
    x = 653,957,014.15/22,126.18
  6. Step 6: Final answer
    x = 29,555.81

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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.