Home / 22,145.24-30,562.82-13,645.55

Finding the Fourth Proportional to 22,145.24, 30,562.82 and 13,645.55

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Solution

The fourth proportional to 22,145.24, 30,562.82 and 13,645.55 is: 18,832.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,145.24 : 30,562.82 = 13,645.55 : x
  2. Step 2: Convert to fraction form
    22,145.24/30,562.82 = 13,645.55/x
  3. Step 3: Cross multiply
    22,145.24x = 30,562.82 × 13,645.55
  4. Step 4: Simplify right side
    22,145.24x = 417,046,267.41
  5. Step 5: Solve for x
    x = 417,046,267.41/22,145.24
  6. Step 6: Final answer
    x = 18,832.33

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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.