Home / 19,643.68-29,460.42-7,161.52

Finding the Fourth Proportional to 19,643.68, 29,460.42 and 7,161.52

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Solution

The fourth proportional to 19,643.68, 29,460.42 and 7,161.52 is: 10,740.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.68 : 29,460.42 = 7,161.52 : x
  2. Step 2: Convert to fraction form
    19,643.68/29,460.42 = 7,161.52/x
  3. Step 3: Cross multiply
    19,643.68x = 29,460.42 × 7,161.52
  4. Step 4: Simplify right side
    19,643.68x = 210,981,387.04
  5. Step 5: Solve for x
    x = 210,981,387.04/19,643.68
  6. Step 6: Final answer
    x = 10,740.42

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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.