Home / 22,140.75-30,554.24-13,757.25

Finding the Fourth Proportional to 22,140.75, 30,554.24 and 13,757.25

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Solution

The fourth proportional to 22,140.75, 30,554.24 and 13,757.25 is: 18,985.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,140.75 : 30,554.24 = 13,757.25 : x
  2. Step 2: Convert to fraction form
    22,140.75/30,554.24 = 13,757.25/x
  3. Step 3: Cross multiply
    22,140.75x = 30,554.24 × 13,757.25
  4. Step 4: Simplify right side
    22,140.75x = 420,342,249.45
  5. Step 5: Solve for x
    x = 420,342,249.45/22,140.75
  6. Step 6: Final answer
    x = 18,985.01

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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.