Home / 39,640.04-54,702.83-21,734.99

Finding the Fourth Proportional to 39,640.04, 54,702.83 and 21,734.99

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Solution

The fourth proportional to 39,640.04, 54,702.83 and 21,734.99 is: 29,994.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,640.04 : 54,702.83 = 21,734.99 : x
  2. Step 2: Convert to fraction form
    39,640.04/54,702.83 = 21,734.99/x
  3. Step 3: Cross multiply
    39,640.04x = 54,702.83 × 21,734.99
  4. Step 4: Simplify right side
    39,640.04x = 1,188,965,080.83
  5. Step 5: Solve for x
    x = 1,188,965,080.83/39,640.04
  6. Step 6: Final answer
    x = 29,994.05

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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.