Home / 22,406.15-30,919.91-12,334.20

Finding the Fourth Proportional to 22,406.15, 30,919.91 and 12,334.20

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Solution

The fourth proportional to 22,406.15, 30,919.91 and 12,334.20 is: 17,020.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,406.15 : 30,919.91 = 12,334.20 : x
  2. Step 2: Convert to fraction form
    22,406.15/30,919.91 = 12,334.20/x
  3. Step 3: Cross multiply
    22,406.15x = 30,919.91 × 12,334.20
  4. Step 4: Simplify right side
    22,406.15x = 381,372,292.25
  5. Step 5: Solve for x
    x = 381,372,292.25/22,406.15
  6. Step 6: Final answer
    x = 17,020.88

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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.