Home / 22,272.48-33,388.84-8,431.20

Finding the Fourth Proportional to 22,272.48, 33,388.84 and 8,431.20

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Solution

The fourth proportional to 22,272.48, 33,388.84 and 8,431.20 is: 12,639.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,272.48 : 33,388.84 = 8,431.20 : x
  2. Step 2: Convert to fraction form
    22,272.48/33,388.84 = 8,431.20/x
  3. Step 3: Cross multiply
    22,272.48x = 33,388.84 × 8,431.20
  4. Step 4: Simplify right side
    22,272.48x = 281,507,987.81
  5. Step 5: Solve for x
    x = 281,507,987.81/22,272.48
  6. Step 6: Final answer
    x = 12,639.27

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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.