Home / 21,847.45-32,766.27-8,520.76

Finding the Fourth Proportional to 21,847.45, 32,766.27 and 8,520.76

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Solution

The fourth proportional to 21,847.45, 32,766.27 and 8,520.76 is: 12,779.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,847.45 : 32,766.27 = 8,520.76 : x
  2. Step 2: Convert to fraction form
    21,847.45/32,766.27 = 8,520.76/x
  3. Step 3: Cross multiply
    21,847.45x = 32,766.27 × 8,520.76
  4. Step 4: Simplify right side
    21,847.45x = 279,193,441.47
  5. Step 5: Solve for x
    x = 279,193,441.47/21,847.45
  6. Step 6: Final answer
    x = 12,779.23

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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.