Home / 29,405.12-40,579.25-15,976.36

Finding the Fourth Proportional to 29,405.12, 40,579.25 and 15,976.36

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Solution

The fourth proportional to 29,405.12, 40,579.25 and 15,976.36 is: 22,047.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,405.12 : 40,579.25 = 15,976.36 : x
  2. Step 2: Convert to fraction form
    29,405.12/40,579.25 = 15,976.36/x
  3. Step 3: Cross multiply
    29,405.12x = 40,579.25 × 15,976.36
  4. Step 4: Simplify right side
    29,405.12x = 648,308,791.50
  5. Step 5: Solve for x
    x = 648,308,791.50/29,405.12
  6. Step 6: Final answer
    x = 22,047.48

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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.