Home / 31,848.20-47,793.90-20,727.80

Finding the Fourth Proportional to 31,848.20, 47,793.90 and 20,727.80

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Solution

The fourth proportional to 31,848.20, 47,793.90 and 20,727.80 is: 31,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,848.20 : 47,793.90 = 20,727.80 : x
  2. Step 2: Convert to fraction form
    31,848.20/47,793.90 = 20,727.80/x
  3. Step 3: Cross multiply
    31,848.20x = 47,793.90 × 20,727.80
  4. Step 4: Simplify right side
    31,848.20x = 990,662,400.42
  5. Step 5: Solve for x
    x = 990,662,400.42/31,848.20
  6. Step 6: Final answer
    x = 31,105.76

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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.