Home / 31,725-43,780.28-17,577.81

Finding the Fourth Proportional to 31,725, 43,780.28 and 17,577.81

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Solution

The fourth proportional to 31,725, 43,780.28 and 17,577.81 is: 24,257.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,725 : 43,780.28 = 17,577.81 : x
  2. Step 2: Convert to fraction form
    31,725/43,780.28 = 17,577.81/x
  3. Step 3: Cross multiply
    31,725x = 43,780.28 × 17,577.81
  4. Step 4: Simplify right side
    31,725x = 769,561,355.70
  5. Step 5: Solve for x
    x = 769,561,355.70/31,725
  6. Step 6: Final answer
    x = 24,257.25

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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.