Home / 47,871.12-71,806.44-20,169.12

Finding the Fourth Proportional to 47,871.12, 71,806.44 and 20,169.12

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Solution

The fourth proportional to 47,871.12, 71,806.44 and 20,169.12 is: 30,253.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,871.12 : 71,806.44 = 20,169.12 : x
  2. Step 2: Convert to fraction form
    47,871.12/71,806.44 = 20,169.12/x
  3. Step 3: Cross multiply
    47,871.12x = 71,806.44 × 20,169.12
  4. Step 4: Simplify right side
    47,871.12x = 1,448,272,705.13
  5. Step 5: Solve for x
    x = 1,448,272,705.13/47,871.12
  6. Step 6: Final answer
    x = 30,253.58

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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.