Home / 21,042.98-29,039.24-11,611.56

Finding the Fourth Proportional to 21,042.98, 29,039.24 and 11,611.56

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Solution

The fourth proportional to 21,042.98, 29,039.24 and 11,611.56 is: 16,023.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.98 : 29,039.24 = 11,611.56 : x
  2. Step 2: Convert to fraction form
    21,042.98/29,039.24 = 11,611.56/x
  3. Step 3: Cross multiply
    21,042.98x = 29,039.24 × 11,611.56
  4. Step 4: Simplify right side
    21,042.98x = 337,190,877.61
  5. Step 5: Solve for x
    x = 337,190,877.61/21,042.98
  6. Step 6: Final answer
    x = 16,023.91

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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.