Home / 17,921.86-26,804.12-15,961.25

Finding the Fourth Proportional to 17,921.86, 26,804.12 and 15,961.25

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Solution

The fourth proportional to 17,921.86, 26,804.12 and 15,961.25 is: 23,871.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.86 : 26,804.12 = 15,961.25 : x
  2. Step 2: Convert to fraction form
    17,921.86/26,804.12 = 15,961.25/x
  3. Step 3: Cross multiply
    17,921.86x = 26,804.12 × 15,961.25
  4. Step 4: Simplify right side
    17,921.86x = 427,827,247.55
  5. Step 5: Solve for x
    x = 427,827,247.55/17,921.86
  6. Step 6: Final answer
    x = 23,871.81

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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.