Home / 21,051.68-29,051.52-11,620.04

Finding the Fourth Proportional to 21,051.68, 29,051.52 and 11,620.04

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Solution

The fourth proportional to 21,051.68, 29,051.52 and 11,620.04 is: 16,035.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.68 : 29,051.52 = 11,620.04 : x
  2. Step 2: Convert to fraction form
    21,051.68/29,051.52 = 11,620.04/x
  3. Step 3: Cross multiply
    21,051.68x = 29,051.52 × 11,620.04
  4. Step 4: Simplify right side
    21,051.68x = 337,579,824.46
  5. Step 5: Solve for x
    x = 337,579,824.46/21,051.68
  6. Step 6: Final answer
    x = 16,035.77

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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.