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Finding the Fourth Proportional to 31,299.60, 47,064.60 and 26,230.80

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Solution

The fourth proportional to 31,299.60, 47,064.60 and 26,230.80 is: 39,442.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,299.60 : 47,064.60 = 26,230.80 : x
  2. Step 2: Convert to fraction form
    31,299.60/47,064.60 = 26,230.80/x
  3. Step 3: Cross multiply
    31,299.60x = 47,064.60 × 26,230.80
  4. Step 4: Simplify right side
    31,299.60x = 1,234,542,109.68
  5. Step 5: Solve for x
    x = 1,234,542,109.68/31,299.60
  6. Step 6: Final answer
    x = 39,442.74

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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.