Home / 26,190.60-39,221.10-16,816.20

Finding the Fourth Proportional to 26,190.60, 39,221.10 and 16,816.20

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Solution

The fourth proportional to 26,190.60, 39,221.10 and 16,816.20 is: 25,182.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,190.60 : 39,221.10 = 16,816.20 : x
  2. Step 2: Convert to fraction form
    26,190.60/39,221.10 = 16,816.20/x
  3. Step 3: Cross multiply
    26,190.60x = 39,221.10 × 16,816.20
  4. Step 4: Simplify right side
    26,190.60x = 659,549,861.82
  5. Step 5: Solve for x
    x = 659,549,861.82/26,190.60
  6. Step 6: Final answer
    x = 25,182.69

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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.