Home / 22,540.74-31,107.36-12,982.08

Finding the Fourth Proportional to 22,540.74, 31,107.36 and 12,982.08

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Solution

The fourth proportional to 22,540.74, 31,107.36 and 12,982.08 is: 17,915.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,540.74 : 31,107.36 = 12,982.08 : x
  2. Step 2: Convert to fraction form
    22,540.74/31,107.36 = 12,982.08/x
  3. Step 3: Cross multiply
    22,540.74x = 31,107.36 × 12,982.08
  4. Step 4: Simplify right side
    22,540.74x = 403,838,236.11
  5. Step 5: Solve for x
    x = 403,838,236.11/22,540.74
  6. Step 6: Final answer
    x = 17,915.93

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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.