Home / 20,507.07-30,760.63-5,716.39

Finding the Fourth Proportional to 20,507.07, 30,760.63 and 5,716.39

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Solution

The fourth proportional to 20,507.07, 30,760.63 and 5,716.39 is: 8,574.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,507.07 : 30,760.63 = 5,716.39 : x
  2. Step 2: Convert to fraction form
    20,507.07/30,760.63 = 5,716.39/x
  3. Step 3: Cross multiply
    20,507.07x = 30,760.63 × 5,716.39
  4. Step 4: Simplify right side
    20,507.07x = 175,839,757.73
  5. Step 5: Solve for x
    x = 175,839,757.73/20,507.07
  6. Step 6: Final answer
    x = 8,574.59

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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.