Home / 22,521.38-31,080.21-12,450.14

Finding the Fourth Proportional to 22,521.38, 31,080.21 and 12,450.14

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Solution

The fourth proportional to 22,521.38, 31,080.21 and 12,450.14 is: 17,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,521.38 : 31,080.21 = 12,450.14 : x
  2. Step 2: Convert to fraction form
    22,521.38/31,080.21 = 12,450.14/x
  3. Step 3: Cross multiply
    22,521.38x = 31,080.21 × 12,450.14
  4. Step 4: Simplify right side
    22,521.38x = 386,952,965.73
  5. Step 5: Solve for x
    x = 386,952,965.73/22,521.38
  6. Step 6: Final answer
    x = 17,181.58

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Half scale
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Double scale
Find fourth proportional to 22,522.38, 31,081.59 and 12,451.14
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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.