Home / 21,622.60-32,388.78-11,202.76

Finding the Fourth Proportional to 21,622.60, 32,388.78 and 11,202.76

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Solution

The fourth proportional to 21,622.60, 32,388.78 and 11,202.76 is: 16,780.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.60 : 32,388.78 = 11,202.76 : x
  2. Step 2: Convert to fraction form
    21,622.60/32,388.78 = 11,202.76/x
  3. Step 3: Cross multiply
    21,622.60x = 32,388.78 × 11,202.76
  4. Step 4: Simplify right side
    21,622.60x = 362,843,729.03
  5. Step 5: Solve for x
    x = 362,843,729.03/21,622.60
  6. Step 6: Final answer
    x = 16,780.76

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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.