Home / 31,686.74-43,726.44-17,539.28

Finding the Fourth Proportional to 31,686.74, 43,726.44 and 17,539.28

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Solution

The fourth proportional to 31,686.74, 43,726.44 and 17,539.28 is: 24,203.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,686.74 : 43,726.44 = 17,539.28 : x
  2. Step 2: Convert to fraction form
    31,686.74/43,726.44 = 17,539.28/x
  3. Step 3: Cross multiply
    31,686.74x = 43,726.44 × 17,539.28
  4. Step 4: Simplify right side
    31,686.74x = 766,930,274.56
  5. Step 5: Solve for x
    x = 766,930,274.56/31,686.74
  6. Step 6: Final answer
    x = 24,203.51

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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.