Home / 29,165.94-40,245.30-18,406.80

Finding the Fourth Proportional to 29,165.94, 40,245.30 and 18,406.80

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Solution

The fourth proportional to 29,165.94, 40,245.30 and 18,406.80 is: 25,399.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,165.94 : 40,245.30 = 18,406.80 : x
  2. Step 2: Convert to fraction form
    29,165.94/40,245.30 = 18,406.80/x
  3. Step 3: Cross multiply
    29,165.94x = 40,245.30 × 18,406.80
  4. Step 4: Simplify right side
    29,165.94x = 740,787,188.04
  5. Step 5: Solve for x
    x = 740,787,188.04/29,165.94
  6. Step 6: Final answer
    x = 25,399.05

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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.