Home / 19,983.12-29,979.27-6,835.47

Finding the Fourth Proportional to 19,983.12, 29,979.27 and 6,835.47

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Solution

The fourth proportional to 19,983.12, 29,979.27 and 6,835.47 is: 10,254.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.12 : 29,979.27 = 6,835.47 : x
  2. Step 2: Convert to fraction form
    19,983.12/29,979.27 = 6,835.47/x
  3. Step 3: Cross multiply
    19,983.12x = 29,979.27 × 6,835.47
  4. Step 4: Simplify right side
    19,983.12x = 204,922,400.71
  5. Step 5: Solve for x
    x = 204,922,400.71/19,983.12
  6. Step 6: Final answer
    x = 10,254.78

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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.