Home / 22,125.20-30,518.82-13,166.01

Finding the Fourth Proportional to 22,125.20, 30,518.82 and 13,166.01

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Solution

The fourth proportional to 22,125.20, 30,518.82 and 13,166.01 is: 18,160.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,125.20 : 30,518.82 = 13,166.01 : x
  2. Step 2: Convert to fraction form
    22,125.20/30,518.82 = 13,166.01/x
  3. Step 3: Cross multiply
    22,125.20x = 30,518.82 × 13,166.01
  4. Step 4: Simplify right side
    22,125.20x = 401,811,089.31
  5. Step 5: Solve for x
    x = 401,811,089.31/22,125.20
  6. Step 6: Final answer
    x = 18,160.79

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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.