Home / 19,824.18-29,720.34-13,568.82

Finding the Fourth Proportional to 19,824.18, 29,720.34 and 13,568.82

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Solution

The fourth proportional to 19,824.18, 29,720.34 and 13,568.82 is: 20,342.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,824.18 : 29,720.34 = 13,568.82 : x
  2. Step 2: Convert to fraction form
    19,824.18/29,720.34 = 13,568.82/x
  3. Step 3: Cross multiply
    19,824.18x = 29,720.34 × 13,568.82
  4. Step 4: Simplify right side
    19,824.18x = 403,269,943.80
  5. Step 5: Solve for x
    x = 403,269,943.80/19,824.18
  6. Step 6: Final answer
    x = 20,342.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.