Home / 22,511.72-31,067.30-12,441.32

Finding the Fourth Proportional to 22,511.72, 31,067.30 and 12,441.32

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Solution

The fourth proportional to 22,511.72, 31,067.30 and 12,441.32 is: 17,169.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,511.72 : 31,067.30 = 12,441.32 : x
  2. Step 2: Convert to fraction form
    22,511.72/31,067.30 = 12,441.32/x
  3. Step 3: Cross multiply
    22,511.72x = 31,067.30 × 12,441.32
  4. Step 4: Simplify right side
    22,511.72x = 386,518,220.84
  5. Step 5: Solve for x
    x = 386,518,220.84/22,511.72
  6. Step 6: Final answer
    x = 17,169.64

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Half scale
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Double scale
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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.