Home / 22,220.40-33,340.20-11,276.40

Finding the Fourth Proportional to 22,220.40, 33,340.20 and 11,276.40

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Solution

The fourth proportional to 22,220.40, 33,340.20 and 11,276.40 is: 16,919.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,220.40 : 33,340.20 = 11,276.40 : x
  2. Step 2: Convert to fraction form
    22,220.40/33,340.20 = 11,276.40/x
  3. Step 3: Cross multiply
    22,220.40x = 33,340.20 × 11,276.40
  4. Step 4: Simplify right side
    22,220.40x = 375,957,431.28
  5. Step 5: Solve for x
    x = 375,957,431.28/22,220.40
  6. Step 6: Final answer
    x = 16,919.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.