Home / 21,032.43-29,027.89-13,487.28

Finding the Fourth Proportional to 21,032.43, 29,027.89 and 13,487.28

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Solution

The fourth proportional to 21,032.43, 29,027.89 and 13,487.28 is: 18,614.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032.43 : 29,027.89 = 13,487.28 : x
  2. Step 2: Convert to fraction form
    21,032.43/29,027.89 = 13,487.28/x
  3. Step 3: Cross multiply
    21,032.43x = 29,027.89 × 13,487.28
  4. Step 4: Simplify right side
    21,032.43x = 391,507,188.24
  5. Step 5: Solve for x
    x = 391,507,188.24/21,032.43
  6. Step 6: Final answer
    x = 18,614.46

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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.