Home / 31,266.10-43,147.20-17,118.91

Finding the Fourth Proportional to 31,266.10, 43,147.20 and 17,118.91

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Solution

The fourth proportional to 31,266.10, 43,147.20 and 17,118.91 is: 23,624.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,266.10 : 43,147.20 = 17,118.91 : x
  2. Step 2: Convert to fraction form
    31,266.10/43,147.20 = 17,118.91/x
  3. Step 3: Cross multiply
    31,266.10x = 43,147.20 × 17,118.91
  4. Step 4: Simplify right side
    31,266.10x = 738,633,033.55
  5. Step 5: Solve for x
    x = 738,633,033.55/31,266.10
  6. Step 6: Final answer
    x = 23,624.09

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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.