Home / 22,218.80-33,274.20-11,807.60

Finding the Fourth Proportional to 22,218.80, 33,274.20 and 11,807.60

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Solution

The fourth proportional to 22,218.80, 33,274.20 and 11,807.60 is: 17,682.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,218.80 : 33,274.20 = 11,807.60 : x
  2. Step 2: Convert to fraction form
    22,218.80/33,274.20 = 11,807.60/x
  3. Step 3: Cross multiply
    22,218.80x = 33,274.20 × 11,807.60
  4. Step 4: Simplify right side
    22,218.80x = 392,888,443.92
  5. Step 5: Solve for x
    x = 392,888,443.92/22,218.80
  6. Step 6: Final answer
    x = 17,682.70

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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.