Home / 29,178.96-40,242.90-18,550.08

Finding the Fourth Proportional to 29,178.96, 40,242.90 and 18,550.08

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Solution

The fourth proportional to 29,178.96, 40,242.90 and 18,550.08 is: 25,583.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,178.96 : 40,242.90 = 18,550.08 : x
  2. Step 2: Convert to fraction form
    29,178.96/40,242.90 = 18,550.08/x
  3. Step 3: Cross multiply
    29,178.96x = 40,242.90 × 18,550.08
  4. Step 4: Simplify right side
    29,178.96x = 746,509,014.43
  5. Step 5: Solve for x
    x = 746,509,014.43/29,178.96
  6. Step 6: Final answer
    x = 25,583.81

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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.