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Finding the Fourth Proportional to 26,197.60, 39,206.80 and 15,816.80

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Solution

The fourth proportional to 26,197.60, 39,206.80 and 15,816.80 is: 23,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,197.60 : 39,206.80 = 15,816.80 : x
  2. Step 2: Convert to fraction form
    26,197.60/39,206.80 = 15,816.80/x
  3. Step 3: Cross multiply
    26,197.60x = 39,206.80 × 15,816.80
  4. Step 4: Simplify right side
    26,197.60x = 620,126,114.24
  5. Step 5: Solve for x
    x = 620,126,114.24/26,197.60
  6. Step 6: Final answer
    x = 23,671.10

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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.