Home / 31,523.06-47,252.69-20,436.80

Finding the Fourth Proportional to 31,523.06, 47,252.69 and 20,436.80

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Solution

The fourth proportional to 31,523.06, 47,252.69 and 20,436.80 is: 30,634.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,523.06 : 47,252.69 = 20,436.80 : x
  2. Step 2: Convert to fraction form
    31,523.06/47,252.69 = 20,436.80/x
  3. Step 3: Cross multiply
    31,523.06x = 47,252.69 × 20,436.80
  4. Step 4: Simplify right side
    31,523.06x = 965,693,436.54
  5. Step 5: Solve for x
    x = 965,693,436.54/31,523.06
  6. Step 6: Final answer
    x = 30,634.51

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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.