Home / 26,650.86-39,914.10-21,066.72

Finding the Fourth Proportional to 26,650.86, 39,914.10 and 21,066.72

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Solution

The fourth proportional to 26,650.86, 39,914.10 and 21,066.72 is: 31,550.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,650.86 : 39,914.10 = 21,066.72 : x
  2. Step 2: Convert to fraction form
    26,650.86/39,914.10 = 21,066.72/x
  3. Step 3: Cross multiply
    26,650.86x = 39,914.10 × 21,066.72
  4. Step 4: Simplify right side
    26,650.86x = 840,859,168.75
  5. Step 5: Solve for x
    x = 840,859,168.75/26,650.86
  6. Step 6: Final answer
    x = 31,550.92

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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.