Home / 21,053.41-29,053.15-11,621.77

Finding the Fourth Proportional to 21,053.41, 29,053.15 and 11,621.77

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Solution

The fourth proportional to 21,053.41, 29,053.15 and 11,621.77 is: 16,037.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053.41 : 29,053.15 = 11,621.77 : x
  2. Step 2: Convert to fraction form
    21,053.41/29,053.15 = 11,621.77/x
  3. Step 3: Cross multiply
    21,053.41x = 29,053.15 × 11,621.77
  4. Step 4: Simplify right side
    21,053.41x = 337,649,027.08
  5. Step 5: Solve for x
    x = 337,649,027.08/21,053.41
  6. Step 6: Final answer
    x = 16,037.74

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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.