Home / 21,073.96-29,086.14-13,529.82

Finding the Fourth Proportional to 21,073.96, 29,086.14 and 13,529.82

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Solution

The fourth proportional to 21,073.96, 29,086.14 and 13,529.82 is: 18,673.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.96 : 29,086.14 = 13,529.82 : x
  2. Step 2: Convert to fraction form
    21,073.96/29,086.14 = 13,529.82/x
  3. Step 3: Cross multiply
    21,073.96x = 29,086.14 × 13,529.82
  4. Step 4: Simplify right side
    21,073.96x = 393,530,158.79
  5. Step 5: Solve for x
    x = 393,530,158.79/21,073.96
  6. Step 6: Final answer
    x = 18,673.77

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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.