Home / 26,329.20-39,499.20-8,811.60

Finding the Fourth Proportional to 26,329.20, 39,499.20 and 8,811.60

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Solution

The fourth proportional to 26,329.20, 39,499.20 and 8,811.60 is: 13,219.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,329.20 : 39,499.20 = 8,811.60 : x
  2. Step 2: Convert to fraction form
    26,329.20/39,499.20 = 8,811.60/x
  3. Step 3: Cross multiply
    26,329.20x = 39,499.20 × 8,811.60
  4. Step 4: Simplify right side
    26,329.20x = 348,051,150.72
  5. Step 5: Solve for x
    x = 348,051,150.72/26,329.20
  6. Step 6: Final answer
    x = 13,219.21

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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.