Home / 26,311.93-39,469.26-13,159.86

Finding the Fourth Proportional to 26,311.93, 39,469.26 and 13,159.86

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Solution

The fourth proportional to 26,311.93, 39,469.26 and 13,159.86 is: 19,740.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,311.93 : 39,469.26 = 13,159.86 : x
  2. Step 2: Convert to fraction form
    26,311.93/39,469.26 = 13,159.86/x
  3. Step 3: Cross multiply
    26,311.93x = 39,469.26 × 13,159.86
  4. Step 4: Simplify right side
    26,311.93x = 519,409,935.90
  5. Step 5: Solve for x
    x = 519,409,935.90/26,311.93
  6. Step 6: Final answer
    x = 19,740.47

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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.