Home / 20,142.92-30,214.14-14,195.24

Finding the Fourth Proportional to 20,142.92, 30,214.14 and 14,195.24

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Solution

The fourth proportional to 20,142.92, 30,214.14 and 14,195.24 is: 21,292.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142.92 : 30,214.14 = 14,195.24 : x
  2. Step 2: Convert to fraction form
    20,142.92/30,214.14 = 14,195.24/x
  3. Step 3: Cross multiply
    20,142.92x = 30,214.14 × 14,195.24
  4. Step 4: Simplify right side
    20,142.92x = 428,896,968.69
  5. Step 5: Solve for x
    x = 428,896,968.69/20,142.92
  6. Step 6: Final answer
    x = 21,292.69

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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.