Home / 22,778.20-31,421.28-13,344.94

Finding the Fourth Proportional to 22,778.20, 31,421.28 and 13,344.94

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Solution

The fourth proportional to 22,778.20, 31,421.28 and 13,344.94 is: 18,408.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,778.20 : 31,421.28 = 13,344.94 : x
  2. Step 2: Convert to fraction form
    22,778.20/31,421.28 = 13,344.94/x
  3. Step 3: Cross multiply
    22,778.20x = 31,421.28 × 13,344.94
  4. Step 4: Simplify right side
    22,778.20x = 419,315,096.32
  5. Step 5: Solve for x
    x = 419,315,096.32/22,778.20
  6. Step 6: Final answer
    x = 18,408.61

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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.