Home / 31,280.72-43,167.41-17,133.80

Finding the Fourth Proportional to 31,280.72, 43,167.41 and 17,133.80

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Solution

The fourth proportional to 31,280.72, 43,167.41 and 17,133.80 is: 23,644.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,280.72 : 43,167.41 = 17,133.80 : x
  2. Step 2: Convert to fraction form
    31,280.72/43,167.41 = 17,133.80/x
  3. Step 3: Cross multiply
    31,280.72x = 43,167.41 × 17,133.80
  4. Step 4: Simplify right side
    31,280.72x = 739,621,467.95
  5. Step 5: Solve for x
    x = 739,621,467.95/31,280.72
  6. Step 6: Final answer
    x = 23,644.65

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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.