Home / 21,709.20-32,588.10-16,800.60

Finding the Fourth Proportional to 21,709.20, 32,588.10 and 16,800.60

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Solution

The fourth proportional to 21,709.20, 32,588.10 and 16,800.60 is: 25,219.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,709.20 : 32,588.10 = 16,800.60 : x
  2. Step 2: Convert to fraction form
    21,709.20/32,588.10 = 16,800.60/x
  3. Step 3: Cross multiply
    21,709.20x = 32,588.10 × 16,800.60
  4. Step 4: Simplify right side
    21,709.20x = 547,499,632.86
  5. Step 5: Solve for x
    x = 547,499,632.86/21,709.20
  6. Step 6: Final answer
    x = 25,219.71

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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.