Home / 19,812.89-29,719.40-5,021.82

Finding the Fourth Proportional to 19,812.89, 29,719.40 and 5,021.82

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Solution

The fourth proportional to 19,812.89, 29,719.40 and 5,021.82 is: 7,532.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.89 : 29,719.40 = 5,021.82 : x
  2. Step 2: Convert to fraction form
    19,812.89/29,719.40 = 5,021.82/x
  3. Step 3: Cross multiply
    19,812.89x = 29,719.40 × 5,021.82
  4. Step 4: Simplify right side
    19,812.89x = 149,245,452.20
  5. Step 5: Solve for x
    x = 149,245,452.20/19,812.89
  6. Step 6: Final answer
    x = 7,532.74

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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.