Home / 20,884.56-31,270.33-15,295.56

Finding the Fourth Proportional to 20,884.56, 31,270.33 and 15,295.56

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Solution

The fourth proportional to 20,884.56, 31,270.33 and 15,295.56 is: 22,901.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,884.56 : 31,270.33 = 15,295.56 : x
  2. Step 2: Convert to fraction form
    20,884.56/31,270.33 = 15,295.56/x
  3. Step 3: Cross multiply
    20,884.56x = 31,270.33 × 15,295.56
  4. Step 4: Simplify right side
    20,884.56x = 478,297,208.73
  5. Step 5: Solve for x
    x = 478,297,208.73/20,884.56
  6. Step 6: Final answer
    x = 22,901.95

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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.