Home / 21,571.11-32,358.06-6,780.60

Finding the Fourth Proportional to 21,571.11, 32,358.06 and 6,780.60

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Solution

The fourth proportional to 21,571.11, 32,358.06 and 6,780.60 is: 10,171.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.11 : 32,358.06 = 6,780.60 : x
  2. Step 2: Convert to fraction form
    21,571.11/32,358.06 = 6,780.60/x
  3. Step 3: Cross multiply
    21,571.11x = 32,358.06 × 6,780.60
  4. Step 4: Simplify right side
    21,571.11x = 219,407,061.64
  5. Step 5: Solve for x
    x = 219,407,061.64/21,571.11
  6. Step 6: Final answer
    x = 10,171.34

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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.