Home / 19,963.68-29,933.10-7,477.20

Finding the Fourth Proportional to 19,963.68, 29,933.10 and 7,477.20

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Solution

The fourth proportional to 19,963.68, 29,933.10 and 7,477.20 is: 11,211.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,963.68 : 29,933.10 = 7,477.20 : x
  2. Step 2: Convert to fraction form
    19,963.68/29,933.10 = 7,477.20/x
  3. Step 3: Cross multiply
    19,963.68x = 29,933.10 × 7,477.20
  4. Step 4: Simplify right side
    19,963.68x = 223,815,775.32
  5. Step 5: Solve for x
    x = 223,815,775.32/19,963.68
  6. Step 6: Final answer
    x = 11,211.15

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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.