Home / 19,515.23-29,272.92-4,724.12

Finding the Fourth Proportional to 19,515.23, 29,272.92 and 4,724.12

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Solution

The fourth proportional to 19,515.23, 29,272.92 and 4,724.12 is: 7,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.23 : 29,272.92 = 4,724.12 : x
  2. Step 2: Convert to fraction form
    19,515.23/29,272.92 = 4,724.12/x
  3. Step 3: Cross multiply
    19,515.23x = 29,272.92 × 4,724.12
  4. Step 4: Simplify right side
    19,515.23x = 138,288,860.01
  5. Step 5: Solve for x
    x = 138,288,860.01/19,515.23
  6. Step 6: Final answer
    x = 7,086.20

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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.