Home / 30,131.87-41,530.05-20,042.27

Finding the Fourth Proportional to 30,131.87, 41,530.05 and 20,042.27

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Solution

The fourth proportional to 30,131.87, 41,530.05 and 20,042.27 is: 27,623.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,131.87 : 41,530.05 = 20,042.27 : x
  2. Step 2: Convert to fraction form
    30,131.87/41,530.05 = 20,042.27/x
  3. Step 3: Cross multiply
    30,131.87x = 41,530.05 × 20,042.27
  4. Step 4: Simplify right side
    30,131.87x = 832,356,475.21
  5. Step 5: Solve for x
    x = 832,356,475.21/30,131.87
  6. Step 6: Final answer
    x = 27,623.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.