Home / 22,015.20-33,022.80-18,386.40

Finding the Fourth Proportional to 22,015.20, 33,022.80 and 18,386.40

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Solution

The fourth proportional to 22,015.20, 33,022.80 and 18,386.40 is: 27,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,015.20 : 33,022.80 = 18,386.40 : x
  2. Step 2: Convert to fraction form
    22,015.20/33,022.80 = 18,386.40/x
  3. Step 3: Cross multiply
    22,015.20x = 33,022.80 × 18,386.40
  4. Step 4: Simplify right side
    22,015.20x = 607,170,409.92
  5. Step 5: Solve for x
    x = 607,170,409.92/22,015.20
  6. Step 6: Final answer
    x = 27,579.60

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Similar ratio
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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.