Home / 21,051-29,050.79-11,619.36

Finding the Fourth Proportional to 21,051, 29,050.79 and 11,619.36

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Solution

The fourth proportional to 21,051, 29,050.79 and 11,619.36 is: 16,034.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051 : 29,050.79 = 11,619.36 : x
  2. Step 2: Convert to fraction form
    21,051/29,050.79 = 11,619.36/x
  3. Step 3: Cross multiply
    21,051x = 29,050.79 × 11,619.36
  4. Step 4: Simplify right side
    21,051x = 337,551,529.20
  5. Step 5: Solve for x
    x = 337,551,529.20/21,051
  6. Step 6: Final answer
    x = 16,034.94

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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.