Home / 26,660.86-39,991.32-19,740.22

Finding the Fourth Proportional to 26,660.86, 39,991.32 and 19,740.22

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Solution

The fourth proportional to 26,660.86, 39,991.32 and 19,740.22 is: 29,610.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,660.86 : 39,991.32 = 19,740.22 : x
  2. Step 2: Convert to fraction form
    26,660.86/39,991.32 = 19,740.22/x
  3. Step 3: Cross multiply
    26,660.86x = 39,991.32 × 19,740.22
  4. Step 4: Simplify right side
    26,660.86x = 789,437,454.89
  5. Step 5: Solve for x
    x = 789,437,454.89/26,660.86
  6. Step 6: Final answer
    x = 29,610.35

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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.