Home / 26,921.42-40,379.81-16,388.70

Finding the Fourth Proportional to 26,921.42, 40,379.81 and 16,388.70

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Solution

The fourth proportional to 26,921.42, 40,379.81 and 16,388.70 is: 24,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,921.42 : 40,379.81 = 16,388.70 : x
  2. Step 2: Convert to fraction form
    26,921.42/40,379.81 = 16,388.70/x
  3. Step 3: Cross multiply
    26,921.42x = 40,379.81 × 16,388.70
  4. Step 4: Simplify right side
    26,921.42x = 661,772,708.83
  5. Step 5: Solve for x
    x = 661,772,708.83/26,921.42
  6. Step 6: Final answer
    x = 24,581.65

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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.