Home / 30,702.79-46,056.31-11,976.60

Finding the Fourth Proportional to 30,702.79, 46,056.31 and 11,976.60

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Solution

The fourth proportional to 30,702.79, 46,056.31 and 11,976.60 is: 17,965.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,702.79 : 46,056.31 = 11,976.60 : x
  2. Step 2: Convert to fraction form
    30,702.79/46,056.31 = 11,976.60/x
  3. Step 3: Cross multiply
    30,702.79x = 46,056.31 × 11,976.60
  4. Step 4: Simplify right side
    30,702.79x = 551,597,972.40
  5. Step 5: Solve for x
    x = 551,597,972.40/30,702.79
  6. Step 6: Final answer
    x = 17,965.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.