Home / 20,091.84-30,135.42-5,301.96

Finding the Fourth Proportional to 20,091.84, 30,135.42 and 5,301.96

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Solution

The fourth proportional to 20,091.84, 30,135.42 and 5,301.96 is: 7,952.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,091.84 : 30,135.42 = 5,301.96 : x
  2. Step 2: Convert to fraction form
    20,091.84/30,135.42 = 5,301.96/x
  3. Step 3: Cross multiply
    20,091.84x = 30,135.42 × 5,301.96
  4. Step 4: Simplify right side
    20,091.84x = 159,776,791.42
  5. Step 5: Solve for x
    x = 159,776,791.42/20,091.84
  6. Step 6: Final answer
    x = 7,952.32

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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.