Home / 22,691.44-31,313.64-12,619.85

Finding the Fourth Proportional to 22,691.44, 31,313.64 and 12,619.85

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Solution

The fourth proportional to 22,691.44, 31,313.64 and 12,619.85 is: 17,415.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,691.44 : 31,313.64 = 12,619.85 : x
  2. Step 2: Convert to fraction form
    22,691.44/31,313.64 = 12,619.85/x
  3. Step 3: Cross multiply
    22,691.44x = 31,313.64 × 12,619.85
  4. Step 4: Simplify right side
    22,691.44x = 395,173,435.66
  5. Step 5: Solve for x
    x = 395,173,435.66/22,691.44
  6. Step 6: Final answer
    x = 17,415.09

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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.