Home / 21,570.21-32,353.18-6,778.73

Finding the Fourth Proportional to 21,570.21, 32,353.18 and 6,778.73

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Solution

The fourth proportional to 21,570.21, 32,353.18 and 6,778.73 is: 10,167.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,570.21 : 32,353.18 = 6,778.73 : x
  2. Step 2: Convert to fraction form
    21,570.21/32,353.18 = 6,778.73/x
  3. Step 3: Cross multiply
    21,570.21x = 32,353.18 × 6,778.73
  4. Step 4: Simplify right side
    21,570.21x = 219,313,535.80
  5. Step 5: Solve for x
    x = 219,313,535.80/21,570.21
  6. Step 6: Final answer
    x = 10,167.43

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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.