Home / 31,255.17-43,130.48-17,105.28

Finding the Fourth Proportional to 31,255.17, 43,130.48 and 17,105.28

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Solution

The fourth proportional to 31,255.17, 43,130.48 and 17,105.28 is: 23,604.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,255.17 : 43,130.48 = 17,105.28 : x
  2. Step 2: Convert to fraction form
    31,255.17/43,130.48 = 17,105.28/x
  3. Step 3: Cross multiply
    31,255.17x = 43,130.48 × 17,105.28
  4. Step 4: Simplify right side
    31,255.17x = 737,758,689.67
  5. Step 5: Solve for x
    x = 737,758,689.67/31,255.17
  6. Step 6: Final answer
    x = 23,604.38

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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.