Home / 20,151.13-30,242.44-13,954.58

Finding the Fourth Proportional to 20,151.13, 30,242.44 and 13,954.58

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Solution

The fourth proportional to 20,151.13, 30,242.44 and 13,954.58 is: 20,942.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.13 : 30,242.44 = 13,954.58 : x
  2. Step 2: Convert to fraction form
    20,151.13/30,242.44 = 13,954.58/x
  3. Step 3: Cross multiply
    20,151.13x = 30,242.44 × 13,954.58
  4. Step 4: Simplify right side
    20,151.13x = 422,020,327.39
  5. Step 5: Solve for x
    x = 422,020,327.39/20,151.13
  6. Step 6: Final answer
    x = 20,942.76

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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.