Home / 31,289.22-43,179.48-17,142.30

Finding the Fourth Proportional to 31,289.22, 43,179.48 and 17,142.30

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Solution

The fourth proportional to 31,289.22, 43,179.48 and 17,142.30 is: 23,656.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.22 : 43,179.48 = 17,142.30 : x
  2. Step 2: Convert to fraction form
    31,289.22/43,179.48 = 17,142.30/x
  3. Step 3: Cross multiply
    31,289.22x = 43,179.48 × 17,142.30
  4. Step 4: Simplify right side
    31,289.22x = 740,195,600.00
  5. Step 5: Solve for x
    x = 740,195,600.00/31,289.22
  6. Step 6: Final answer
    x = 23,656.57

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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.