Home / 21,053.05-29,053.45-11,621.62

Finding the Fourth Proportional to 21,053.05, 29,053.45 and 11,621.62

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Solution

The fourth proportional to 21,053.05, 29,053.45 and 11,621.62 is: 16,037.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053.05 : 29,053.45 = 11,621.62 : x
  2. Step 2: Convert to fraction form
    21,053.05/29,053.45 = 11,621.62/x
  3. Step 3: Cross multiply
    21,053.05x = 29,053.45 × 11,621.62
  4. Step 4: Simplify right side
    21,053.05x = 337,648,155.59
  5. Step 5: Solve for x
    x = 337,648,155.59/21,053.05
  6. Step 6: Final answer
    x = 16,037.97

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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.