Home / 22,261.20-30,723.96-13,315.68

Finding the Fourth Proportional to 22,261.20, 30,723.96 and 13,315.68

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Solution

The fourth proportional to 22,261.20, 30,723.96 and 13,315.68 is: 18,377.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,261.20 : 30,723.96 = 13,315.68 : x
  2. Step 2: Convert to fraction form
    22,261.20/30,723.96 = 13,315.68/x
  3. Step 3: Cross multiply
    22,261.20x = 30,723.96 × 13,315.68
  4. Step 4: Simplify right side
    22,261.20x = 409,110,419.69
  5. Step 5: Solve for x
    x = 409,110,419.69/22,261.20
  6. Step 6: Final answer
    x = 18,377.73

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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.