Home / 21,298.80-29,392.54-11,739.03

Finding the Fourth Proportional to 21,298.80, 29,392.54 and 11,739.03

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Solution

The fourth proportional to 21,298.80, 29,392.54 and 11,739.03 is: 16,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,298.80 : 29,392.54 = 11,739.03 : x
  2. Step 2: Convert to fraction form
    21,298.80/29,392.54 = 11,739.03/x
  3. Step 3: Cross multiply
    21,298.80x = 29,392.54 × 11,739.03
  4. Step 4: Simplify right side
    21,298.80x = 345,039,908.84
  5. Step 5: Solve for x
    x = 345,039,908.84/21,298.80
  6. Step 6: Final answer
    x = 16,199.97

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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.