Home / 31,621.30-43,638.21-17,281.73

Finding the Fourth Proportional to 31,621.30, 43,638.21 and 17,281.73

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Solution

The fourth proportional to 31,621.30, 43,638.21 and 17,281.73 is: 23,849.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,621.30 : 43,638.21 = 17,281.73 : x
  2. Step 2: Convert to fraction form
    31,621.30/43,638.21 = 17,281.73/x
  3. Step 3: Cross multiply
    31,621.30x = 43,638.21 × 17,281.73
  4. Step 4: Simplify right side
    31,621.30x = 754,143,872.00
  5. Step 5: Solve for x
    x = 754,143,872.00/31,621.30
  6. Step 6: Final answer
    x = 23,849.24

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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.