Home / 20,160.80-30,241.48-5,369.66

Finding the Fourth Proportional to 20,160.80, 30,241.48 and 5,369.66

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Solution

The fourth proportional to 20,160.80, 30,241.48 and 5,369.66 is: 8,054.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.80 : 30,241.48 = 5,369.66 : x
  2. Step 2: Convert to fraction form
    20,160.80/30,241.48 = 5,369.66/x
  3. Step 3: Cross multiply
    20,160.80x = 30,241.48 × 5,369.66
  4. Step 4: Simplify right side
    20,160.80x = 162,386,465.50
  5. Step 5: Solve for x
    x = 162,386,465.50/20,160.80
  6. Step 6: Final answer
    x = 8,054.56

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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.