Home / 31,474.38-47,205.27-20,196.33

Finding the Fourth Proportional to 31,474.38, 47,205.27 and 20,196.33

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Solution

The fourth proportional to 31,474.38, 47,205.27 and 20,196.33 is: 30,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,474.38 : 47,205.27 = 20,196.33 : x
  2. Step 2: Convert to fraction form
    31,474.38/47,205.27 = 20,196.33/x
  3. Step 3: Cross multiply
    31,474.38x = 47,205.27 × 20,196.33
  4. Step 4: Simplify right side
    31,474.38x = 953,373,210.66
  5. Step 5: Solve for x
    x = 953,373,210.66/31,474.38
  6. Step 6: Final answer
    x = 30,290.45

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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.