Home / 26,950.20-40,407.78-12,909.87

Finding the Fourth Proportional to 26,950.20, 40,407.78 and 12,909.87

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Solution

The fourth proportional to 26,950.20, 40,407.78 and 12,909.87 is: 19,356.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,950.20 : 40,407.78 = 12,909.87 : x
  2. Step 2: Convert to fraction form
    26,950.20/40,407.78 = 12,909.87/x
  3. Step 3: Cross multiply
    26,950.20x = 40,407.78 × 12,909.87
  4. Step 4: Simplify right side
    26,950.20x = 521,659,186.79
  5. Step 5: Solve for x
    x = 521,659,186.79/26,950.20
  6. Step 6: Final answer
    x = 19,356.41

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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.