Home / 22,717.35-31,350.78-12,645.36

Finding the Fourth Proportional to 22,717.35, 31,350.78 and 12,645.36

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Solution

The fourth proportional to 22,717.35, 31,350.78 and 12,645.36 is: 17,451.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,717.35 : 31,350.78 = 12,645.36 : x
  2. Step 2: Convert to fraction form
    22,717.35/31,350.78 = 12,645.36/x
  3. Step 3: Cross multiply
    22,717.35x = 31,350.78 × 12,645.36
  4. Step 4: Simplify right side
    22,717.35x = 396,441,899.38
  5. Step 5: Solve for x
    x = 396,441,899.38/22,717.35
  6. Step 6: Final answer
    x = 17,451.06

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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.