Home / 30,286.56-41,705.58-21,773.70

Finding the Fourth Proportional to 30,286.56, 41,705.58 and 21,773.70

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Solution

The fourth proportional to 30,286.56, 41,705.58 and 21,773.70 is: 29,983.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.56 : 41,705.58 = 21,773.70 : x
  2. Step 2: Convert to fraction form
    30,286.56/41,705.58 = 21,773.70/x
  3. Step 3: Cross multiply
    30,286.56x = 41,705.58 × 21,773.70
  4. Step 4: Simplify right side
    30,286.56x = 908,084,787.25
  5. Step 5: Solve for x
    x = 908,084,787.25/30,286.56
  6. Step 6: Final answer
    x = 29,983.09

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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.