Home / 20,161.86-30,242.75-5,370.82

Finding the Fourth Proportional to 20,161.86, 30,242.75 and 5,370.82

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Solution

The fourth proportional to 20,161.86, 30,242.75 and 5,370.82 is: 8,056.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.86 : 30,242.75 = 5,370.82 : x
  2. Step 2: Convert to fraction form
    20,161.86/30,242.75 = 5,370.82/x
  3. Step 3: Cross multiply
    20,161.86x = 30,242.75 × 5,370.82
  4. Step 4: Simplify right side
    20,161.86x = 162,428,188.49
  5. Step 5: Solve for x
    x = 162,428,188.49/20,161.86
  6. Step 6: Final answer
    x = 8,056.21

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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.