Home / 31,289.63-43,180.70-17,143.38

Finding the Fourth Proportional to 31,289.63, 43,180.70 and 17,143.38

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Solution

The fourth proportional to 31,289.63, 43,180.70 and 17,143.38 is: 23,658.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.63 : 43,180.70 = 17,143.38 : x
  2. Step 2: Convert to fraction form
    31,289.63/43,180.70 = 17,143.38/x
  3. Step 3: Cross multiply
    31,289.63x = 43,180.70 × 17,143.38
  4. Step 4: Simplify right side
    31,289.63x = 740,263,063.05
  5. Step 5: Solve for x
    x = 740,263,063.05/31,289.63
  6. Step 6: Final answer
    x = 23,658.42

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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.