Home / 21,185.19-29,234.40-12,232.17

Finding the Fourth Proportional to 21,185.19, 29,234.40 and 12,232.17

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Solution

The fourth proportional to 21,185.19, 29,234.40 and 12,232.17 is: 16,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185.19 : 29,234.40 = 12,232.17 : x
  2. Step 2: Convert to fraction form
    21,185.19/29,234.40 = 12,232.17/x
  3. Step 3: Cross multiply
    21,185.19x = 29,234.40 × 12,232.17
  4. Step 4: Simplify right side
    21,185.19x = 357,600,150.65
  5. Step 5: Solve for x
    x = 357,600,150.65/21,185.19
  6. Step 6: Final answer
    x = 16,879.72

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Half 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.