Home / 26,418.80-39,644.29-10,620.86

Finding the Fourth Proportional to 26,418.80, 39,644.29 and 10,620.86

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Solution

The fourth proportional to 26,418.80, 39,644.29 and 10,620.86 is: 15,937.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,418.80 : 39,644.29 = 10,620.86 : x
  2. Step 2: Convert to fraction form
    26,418.80/39,644.29 = 10,620.86/x
  3. Step 3: Cross multiply
    26,418.80x = 39,644.29 × 10,620.86
  4. Step 4: Simplify right side
    26,418.80x = 421,056,566.28
  5. Step 5: Solve for x
    x = 421,056,566.28/26,418.80
  6. Step 6: Final answer
    x = 15,937.77

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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.