Home / 21,043.29-29,039.73-11,611.86

Finding the Fourth Proportional to 21,043.29, 29,039.73 and 11,611.86

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Solution

The fourth proportional to 21,043.29, 29,039.73 and 11,611.86 is: 16,024.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043.29 : 29,039.73 = 11,611.86 : x
  2. Step 2: Convert to fraction form
    21,043.29/29,039.73 = 11,611.86/x
  3. Step 3: Cross multiply
    21,043.29x = 29,039.73 × 11,611.86
  4. Step 4: Simplify right side
    21,043.29x = 337,205,279.20
  5. Step 5: Solve for x
    x = 337,205,279.20/21,043.29
  6. Step 6: Final answer
    x = 16,024.36

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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.