Home / 21,277.89-29,359.26-11,844.63

Finding the Fourth Proportional to 21,277.89, 29,359.26 and 11,844.63

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Solution

The fourth proportional to 21,277.89, 29,359.26 and 11,844.63 is: 16,343.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.89 : 29,359.26 = 11,844.63 : x
  2. Step 2: Convert to fraction form
    21,277.89/29,359.26 = 11,844.63/x
  3. Step 3: Cross multiply
    21,277.89x = 29,359.26 × 11,844.63
  4. Step 4: Simplify right side
    21,277.89x = 347,749,571.77
  5. Step 5: Solve for x
    x = 347,749,571.77/21,277.89
  6. Step 6: Final answer
    x = 16,343.24

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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.