Home / 31,252.64-43,128.68-16,912.44

Finding the Fourth Proportional to 31,252.64, 43,128.68 and 16,912.44

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Solution

The fourth proportional to 31,252.64, 43,128.68 and 16,912.44 is: 23,339.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,252.64 : 43,128.68 = 16,912.44 : x
  2. Step 2: Convert to fraction form
    31,252.64/43,128.68 = 16,912.44/x
  3. Step 3: Cross multiply
    31,252.64x = 43,128.68 × 16,912.44
  4. Step 4: Simplify right side
    31,252.64x = 729,411,128.22
  5. Step 5: Solve for x
    x = 729,411,128.22/31,252.64
  6. Step 6: Final answer
    x = 23,339.19

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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.