Home / 21,350.79-29,463.93-11,791.26

Finding the Fourth Proportional to 21,350.79, 29,463.93 and 11,791.26

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Solution

The fourth proportional to 21,350.79, 29,463.93 and 11,791.26 is: 16,271.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,350.79 : 29,463.93 = 11,791.26 : x
  2. Step 2: Convert to fraction form
    21,350.79/29,463.93 = 11,791.26/x
  3. Step 3: Cross multiply
    21,350.79x = 29,463.93 × 11,791.26
  4. Step 4: Simplify right side
    21,350.79x = 347,416,859.25
  5. Step 5: Solve for x
    x = 347,416,859.25/21,350.79
  6. Step 6: Final answer
    x = 16,271.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.