Home / 21,471.20-32,163.60-14,904.80

Finding the Fourth Proportional to 21,471.20, 32,163.60 and 14,904.80

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Solution

The fourth proportional to 21,471.20, 32,163.60 and 14,904.80 is: 22,327.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,471.20 : 32,163.60 = 14,904.80 : x
  2. Step 2: Convert to fraction form
    21,471.20/32,163.60 = 14,904.80/x
  3. Step 3: Cross multiply
    21,471.20x = 32,163.60 × 14,904.80
  4. Step 4: Simplify right side
    21,471.20x = 479,392,025.28
  5. Step 5: Solve for x
    x = 479,392,025.28/21,471.20
  6. Step 6: Final answer
    x = 22,327.21

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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.