Home / 31,285.50-43,167.27-18,542.67

Finding the Fourth Proportional to 31,285.50, 43,167.27 and 18,542.67

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Solution

The fourth proportional to 31,285.50, 43,167.27 and 18,542.67 is: 25,584.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.50 : 43,167.27 = 18,542.67 : x
  2. Step 2: Convert to fraction form
    31,285.50/43,167.27 = 18,542.67/x
  3. Step 3: Cross multiply
    31,285.50x = 43,167.27 × 18,542.67
  4. Step 4: Simplify right side
    31,285.50x = 800,436,442.41
  5. Step 5: Solve for x
    x = 800,436,442.41/31,285.50
  6. Step 6: Final answer
    x = 25,584.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.