Home / 43,028.76-64,550.64-13,439.04

Finding the Fourth Proportional to 43,028.76, 64,550.64 and 13,439.04

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Solution

The fourth proportional to 43,028.76, 64,550.64 and 13,439.04 is: 20,160.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,028.76 : 64,550.64 = 13,439.04 : x
  2. Step 2: Convert to fraction form
    43,028.76/64,550.64 = 13,439.04/x
  3. Step 3: Cross multiply
    43,028.76x = 64,550.64 × 13,439.04
  4. Step 4: Simplify right side
    43,028.76x = 867,498,632.99
  5. Step 5: Solve for x
    x = 867,498,632.99/43,028.76
  6. Step 6: Final answer
    x = 20,160.90

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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.