Home / 20,071.82-30,135.37-10,217.97

Finding the Fourth Proportional to 20,071.82, 30,135.37 and 10,217.97

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Solution

The fourth proportional to 20,071.82, 30,135.37 and 10,217.97 is: 15,341.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.82 : 30,135.37 = 10,217.97 : x
  2. Step 2: Convert to fraction form
    20,071.82/30,135.37 = 10,217.97/x
  3. Step 3: Cross multiply
    20,071.82x = 30,135.37 × 10,217.97
  4. Step 4: Simplify right side
    20,071.82x = 307,922,130.38
  5. Step 5: Solve for x
    x = 307,922,130.38/20,071.82
  6. Step 6: Final answer
    x = 15,341.02

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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.