Home / 20,635.94-30,949.80-10,101.43

Finding the Fourth Proportional to 20,635.94, 30,949.80 and 10,101.43

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Solution

The fourth proportional to 20,635.94, 30,949.80 and 10,101.43 is: 15,150.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.94 : 30,949.80 = 10,101.43 : x
  2. Step 2: Convert to fraction form
    20,635.94/30,949.80 = 10,101.43/x
  3. Step 3: Cross multiply
    20,635.94x = 30,949.80 × 10,101.43
  4. Step 4: Simplify right side
    20,635.94x = 312,637,238.21
  5. Step 5: Solve for x
    x = 312,637,238.21/20,635.94
  6. Step 6: Final answer
    x = 15,150.13

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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.