Home / 29,012.64-40,043.20-18,942.72

Finding the Fourth Proportional to 29,012.64, 40,043.20 and 18,942.72

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Solution

The fourth proportional to 29,012.64, 40,043.20 and 18,942.72 is: 26,144.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,012.64 : 40,043.20 = 18,942.72 : x
  2. Step 2: Convert to fraction form
    29,012.64/40,043.20 = 18,942.72/x
  3. Step 3: Cross multiply
    29,012.64x = 40,043.20 × 18,942.72
  4. Step 4: Simplify right side
    29,012.64x = 758,527,125.50
  5. Step 5: Solve for x
    x = 758,527,125.50/29,012.64
  6. Step 6: Final answer
    x = 26,144.71

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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.