Home / 39,811.64-59,716.92-12,109.64

Finding the Fourth Proportional to 39,811.64, 59,716.92 and 12,109.64

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Solution

The fourth proportional to 39,811.64, 59,716.92 and 12,109.64 is: 18,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,811.64 : 59,716.92 = 12,109.64 : x
  2. Step 2: Convert to fraction form
    39,811.64/59,716.92 = 12,109.64/x
  3. Step 3: Cross multiply
    39,811.64x = 59,716.92 × 12,109.64
  4. Step 4: Simplify right side
    39,811.64x = 723,150,403.11
  5. Step 5: Solve for x
    x = 723,150,403.11/39,811.64
  6. Step 6: Final answer
    x = 18,164.30

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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.