Home / 20,133.15-30,200.40-5,343.56

Finding the Fourth Proportional to 20,133.15, 30,200.40 and 5,343.56

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Solution

The fourth proportional to 20,133.15, 30,200.40 and 5,343.56 is: 8,015.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.15 : 30,200.40 = 5,343.56 : x
  2. Step 2: Convert to fraction form
    20,133.15/30,200.40 = 5,343.56/x
  3. Step 3: Cross multiply
    20,133.15x = 30,200.40 × 5,343.56
  4. Step 4: Simplify right side
    20,133.15x = 161,377,724.93
  5. Step 5: Solve for x
    x = 161,377,724.93/20,133.15
  6. Step 6: Final answer
    x = 8,015.52

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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.