Home / 22,291.16-30,761.61-12,220.16

Finding the Fourth Proportional to 22,291.16, 30,761.61 and 12,220.16

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Solution

The fourth proportional to 22,291.16, 30,761.61 and 12,220.16 is: 16,863.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,291.16 : 30,761.61 = 12,220.16 : x
  2. Step 2: Convert to fraction form
    22,291.16/30,761.61 = 12,220.16/x
  3. Step 3: Cross multiply
    22,291.16x = 30,761.61 × 12,220.16
  4. Step 4: Simplify right side
    22,291.16x = 375,911,796.06
  5. Step 5: Solve for x
    x = 375,911,796.06/22,291.16
  6. Step 6: Final answer
    x = 16,863.72

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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.