Home / 22,193.10-30,618.99-13,686.30

Finding the Fourth Proportional to 22,193.10, 30,618.99 and 13,686.30

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Solution

The fourth proportional to 22,193.10, 30,618.99 and 13,686.30 is: 18,882.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,193.10 : 30,618.99 = 13,686.30 : x
  2. Step 2: Convert to fraction form
    22,193.10/30,618.99 = 13,686.30/x
  3. Step 3: Cross multiply
    22,193.10x = 30,618.99 × 13,686.30
  4. Step 4: Simplify right side
    22,193.10x = 419,060,682.84
  5. Step 5: Solve for x
    x = 419,060,682.84/22,193.10
  6. Step 6: Final answer
    x = 18,882.48

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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.