Home / 20,667.07-30,991.38-5,872.55

Finding the Fourth Proportional to 20,667.07, 30,991.38 and 5,872.55

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Solution

The fourth proportional to 20,667.07, 30,991.38 and 5,872.55 is: 8,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667.07 : 30,991.38 = 5,872.55 : x
  2. Step 2: Convert to fraction form
    20,667.07/30,991.38 = 5,872.55/x
  3. Step 3: Cross multiply
    20,667.07x = 30,991.38 × 5,872.55
  4. Step 4: Simplify right side
    20,667.07x = 181,998,475.52
  5. Step 5: Solve for x
    x = 181,998,475.52/20,667.07
  6. Step 6: Final answer
    x = 8,806.20

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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.