Home / 31,285.85-46,916.21-18,147.44

Finding the Fourth Proportional to 31,285.85, 46,916.21 and 18,147.44

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Solution

The fourth proportional to 31,285.85, 46,916.21 and 18,147.44 is: 27,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.85 : 46,916.21 = 18,147.44 : x
  2. Step 2: Convert to fraction form
    31,285.85/46,916.21 = 18,147.44/x
  3. Step 3: Cross multiply
    31,285.85x = 46,916.21 × 18,147.44
  4. Step 4: Simplify right side
    31,285.85x = 851,409,268.66
  5. Step 5: Solve for x
    x = 851,409,268.66/31,285.85
  6. Step 6: Final answer
    x = 27,213.88

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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.