Home / 19,979.37-29,979.52-7,508

Finding the Fourth Proportional to 19,979.37, 29,979.52 and 7,508

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Solution

The fourth proportional to 19,979.37, 29,979.52 and 7,508 is: 11,265.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.37 : 29,979.52 = 7,508 : x
  2. Step 2: Convert to fraction form
    19,979.37/29,979.52 = 7,508/x
  3. Step 3: Cross multiply
    19,979.37x = 29,979.52 × 7,508
  4. Step 4: Simplify right side
    19,979.37x = 225,086,236.16
  5. Step 5: Solve for x
    x = 225,086,236.16/19,979.37
  6. Step 6: Final answer
    x = 11,265.93

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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.