Home / 26,939.86-40,428.28-9,409.72

Finding the Fourth Proportional to 26,939.86, 40,428.28 and 9,409.72

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Solution

The fourth proportional to 26,939.86, 40,428.28 and 9,409.72 is: 14,121.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,939.86 : 40,428.28 = 9,409.72 : x
  2. Step 2: Convert to fraction form
    26,939.86/40,428.28 = 9,409.72/x
  3. Step 3: Cross multiply
    26,939.86x = 40,428.28 × 9,409.72
  4. Step 4: Simplify right side
    26,939.86x = 380,418,794.88
  5. Step 5: Solve for x
    x = 380,418,794.88/26,939.86
  6. Step 6: Final answer
    x = 14,121.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.