Home / 29,640.40-40,907.28-17,067.60

Finding the Fourth Proportional to 29,640.40, 40,907.28 and 17,067.60

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Solution

The fourth proportional to 29,640.40, 40,907.28 and 17,067.60 is: 23,555.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,640.40 : 40,907.28 = 17,067.60 : x
  2. Step 2: Convert to fraction form
    29,640.40/40,907.28 = 17,067.60/x
  3. Step 3: Cross multiply
    29,640.40x = 40,907.28 × 17,067.60
  4. Step 4: Simplify right side
    29,640.40x = 698,189,092.13
  5. Step 5: Solve for x
    x = 698,189,092.13/29,640.40
  6. Step 6: Final answer
    x = 23,555.32

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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.