Home / 21,274.98-29,359.46-11,845.77

Finding the Fourth Proportional to 21,274.98, 29,359.46 and 11,845.77

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Solution

The fourth proportional to 21,274.98, 29,359.46 and 11,845.77 is: 16,347.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.98 : 29,359.46 = 11,845.77 : x
  2. Step 2: Convert to fraction form
    21,274.98/29,359.46 = 11,845.77/x
  3. Step 3: Cross multiply
    21,274.98x = 29,359.46 × 11,845.77
  4. Step 4: Simplify right side
    21,274.98x = 347,785,440.10
  5. Step 5: Solve for x
    x = 347,785,440.10/21,274.98
  6. Step 6: Final answer
    x = 16,347.16

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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.