Home / 31,787.56-43,868.82-18,361.27

Finding the Fourth Proportional to 31,787.56, 43,868.82 and 18,361.27

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Solution

The fourth proportional to 31,787.56, 43,868.82 and 18,361.27 is: 25,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,787.56 : 43,868.82 = 18,361.27 : x
  2. Step 2: Convert to fraction form
    31,787.56/43,868.82 = 18,361.27/x
  3. Step 3: Cross multiply
    31,787.56x = 43,868.82 × 18,361.27
  4. Step 4: Simplify right side
    31,787.56x = 805,487,248.60
  5. Step 5: Solve for x
    x = 805,487,248.60/31,787.56
  6. Step 6: Final answer
    x = 25,339.70

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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.