Home / 31,289.14-43,179.24-17,142.22

Finding the Fourth Proportional to 31,289.14, 43,179.24 and 17,142.22

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Solution

The fourth proportional to 31,289.14, 43,179.24 and 17,142.22 is: 23,656.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.14 : 43,179.24 = 17,142.22 : x
  2. Step 2: Convert to fraction form
    31,289.14/43,179.24 = 17,142.22/x
  3. Step 3: Cross multiply
    31,289.14x = 43,179.24 × 17,142.22
  4. Step 4: Simplify right side
    31,289.14x = 740,188,031.51
  5. Step 5: Solve for x
    x = 740,188,031.51/31,289.14
  6. Step 6: Final answer
    x = 23,656.39

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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.