Home / 22,126.37-30,507.81-18,078.21

Finding the Fourth Proportional to 22,126.37, 30,507.81 and 18,078.21

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Solution

The fourth proportional to 22,126.37, 30,507.81 and 18,078.21 is: 24,926.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,126.37 : 30,507.81 = 18,078.21 : x
  2. Step 2: Convert to fraction form
    22,126.37/30,507.81 = 18,078.21/x
  3. Step 3: Cross multiply
    22,126.37x = 30,507.81 × 18,078.21
  4. Step 4: Simplify right side
    22,126.37x = 551,526,766.36
  5. Step 5: Solve for x
    x = 551,526,766.36/22,126.37
  6. Step 6: Final answer
    x = 24,926.23

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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.