Home / 31,545.59-47,286.48-20,459.33

Finding the Fourth Proportional to 31,545.59, 47,286.48 and 20,459.33

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Solution

The fourth proportional to 31,545.59, 47,286.48 and 20,459.33 is: 30,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,545.59 : 47,286.48 = 20,459.33 : x
  2. Step 2: Convert to fraction form
    31,545.59/47,286.48 = 20,459.33/x
  3. Step 3: Cross multiply
    31,545.59x = 47,286.48 × 20,459.33
  4. Step 4: Simplify right side
    31,545.59x = 967,449,698.86
  5. Step 5: Solve for x
    x = 967,449,698.86/31,545.59
  6. Step 6: Final answer
    x = 30,668.30

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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.