Home / 22,219.32-30,670.38-12,791.64

Finding the Fourth Proportional to 22,219.32, 30,670.38 and 12,791.64

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Solution

The fourth proportional to 22,219.32, 30,670.38 and 12,791.64 is: 17,656.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,219.32 : 30,670.38 = 12,791.64 : x
  2. Step 2: Convert to fraction form
    22,219.32/30,670.38 = 12,791.64/x
  3. Step 3: Cross multiply
    22,219.32x = 30,670.38 × 12,791.64
  4. Step 4: Simplify right side
    22,219.32x = 392,324,459.62
  5. Step 5: Solve for x
    x = 392,324,459.62/22,219.32
  6. Step 6: Final answer
    x = 17,656.91

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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.