Home / 22,291.36-30,761.96-12,220.22

Finding the Fourth Proportional to 22,291.36, 30,761.96 and 12,220.22

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Solution

The fourth proportional to 22,291.36, 30,761.96 and 12,220.22 is: 16,863.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,291.36 : 30,761.96 = 12,220.22 : x
  2. Step 2: Convert to fraction form
    22,291.36/30,761.96 = 12,220.22/x
  3. Step 3: Cross multiply
    22,291.36x = 30,761.96 × 12,220.22
  4. Step 4: Simplify right side
    22,291.36x = 375,917,918.83
  5. Step 5: Solve for x
    x = 375,917,918.83/22,291.36
  6. Step 6: Final answer
    x = 16,863.84

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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.