Home / 43,138.68-64,704.92-13,564.97

Finding the Fourth Proportional to 43,138.68, 64,704.92 and 13,564.97

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Solution

The fourth proportional to 43,138.68, 64,704.92 and 13,564.97 is: 20,346.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,138.68 : 64,704.92 = 13,564.97 : x
  2. Step 2: Convert to fraction form
    43,138.68/64,704.92 = 13,564.97/x
  3. Step 3: Cross multiply
    43,138.68x = 64,704.92 × 13,564.97
  4. Step 4: Simplify right side
    43,138.68x = 877,720,392.59
  5. Step 5: Solve for x
    x = 877,720,392.59/43,138.68
  6. Step 6: Final answer
    x = 20,346.48

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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.