Home / 20,247.49-30,371.44-7,100.18

Finding the Fourth Proportional to 20,247.49, 30,371.44 and 7,100.18

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Solution

The fourth proportional to 20,247.49, 30,371.44 and 7,100.18 is: 10,650.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.49 : 30,371.44 = 7,100.18 : x
  2. Step 2: Convert to fraction form
    20,247.49/30,371.44 = 7,100.18/x
  3. Step 3: Cross multiply
    20,247.49x = 30,371.44 × 7,100.18
  4. Step 4: Simplify right side
    20,247.49x = 215,642,690.86
  5. Step 5: Solve for x
    x = 215,642,690.86/20,247.49
  6. Step 6: Final answer
    x = 10,650.34

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Double scale
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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.