Home / 31,729.93-43,787.31-17,390.33

Finding the Fourth Proportional to 31,729.93, 43,787.31 and 17,390.33

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Solution

The fourth proportional to 31,729.93, 43,787.31 and 17,390.33 is: 23,998.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,729.93 : 43,787.31 = 17,390.33 : x
  2. Step 2: Convert to fraction form
    31,729.93/43,787.31 = 17,390.33/x
  3. Step 3: Cross multiply
    31,729.93x = 43,787.31 × 17,390.33
  4. Step 4: Simplify right side
    31,729.93x = 761,475,770.71
  5. Step 5: Solve for x
    x = 761,475,770.71/31,729.93
  6. Step 6: Final answer
    x = 23,998.66

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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.