Home / 31,340.52-43,247.79-17,190.63

Finding the Fourth Proportional to 31,340.52, 43,247.79 and 17,190.63

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Solution

The fourth proportional to 31,340.52, 43,247.79 and 17,190.63 is: 23,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,340.52 : 43,247.79 = 17,190.63 : x
  2. Step 2: Convert to fraction form
    31,340.52/43,247.79 = 17,190.63/x
  3. Step 3: Cross multiply
    31,340.52x = 43,247.79 × 17,190.63
  4. Step 4: Simplify right side
    31,340.52x = 743,456,756.21
  5. Step 5: Solve for x
    x = 743,456,756.21/31,340.52
  6. Step 6: Final answer
    x = 23,721.90

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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.