Home / 43,419.07-65,127.38-13,838.68

Finding the Fourth Proportional to 43,419.07, 65,127.38 and 13,838.68

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Solution

The fourth proportional to 43,419.07, 65,127.38 and 13,838.68 is: 20,757.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,419.07 : 65,127.38 = 13,838.68 : x
  2. Step 2: Convert to fraction form
    43,419.07/65,127.38 = 13,838.68/x
  3. Step 3: Cross multiply
    43,419.07x = 65,127.38 × 13,838.68
  4. Step 4: Simplify right side
    43,419.07x = 901,276,645.42
  5. Step 5: Solve for x
    x = 901,276,645.42/43,419.07
  6. Step 6: Final answer
    x = 20,757.62

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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.