Home / 31,272.34-46,861.52-12,533.80

Finding the Fourth Proportional to 31,272.34, 46,861.52 and 12,533.80

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Solution

The fourth proportional to 31,272.34, 46,861.52 and 12,533.80 is: 18,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,272.34 : 46,861.52 = 12,533.80 : x
  2. Step 2: Convert to fraction form
    31,272.34/46,861.52 = 12,533.80/x
  3. Step 3: Cross multiply
    31,272.34x = 46,861.52 × 12,533.80
  4. Step 4: Simplify right side
    31,272.34x = 587,352,919.38
  5. Step 5: Solve for x
    x = 587,352,919.38/31,272.34
  6. Step 6: Final answer
    x = 18,781.87

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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.