Home / 30,142.25-41,591.24-20,085.71

Finding the Fourth Proportional to 30,142.25, 41,591.24 and 20,085.71

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Solution

The fourth proportional to 30,142.25, 41,591.24 and 20,085.71 is: 27,714.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,142.25 : 41,591.24 = 20,085.71 : x
  2. Step 2: Convert to fraction form
    30,142.25/41,591.24 = 20,085.71/x
  3. Step 3: Cross multiply
    30,142.25x = 41,591.24 × 20,085.71
  4. Step 4: Simplify right side
    30,142.25x = 835,389,585.18
  5. Step 5: Solve for x
    x = 835,389,585.18/30,142.25
  6. Step 6: Final answer
    x = 27,714.90

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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.