Home / 19,979.25-27,574.61-11,913.91

Finding the Fourth Proportional to 19,979.25, 27,574.61 and 11,913.91

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Solution

The fourth proportional to 19,979.25, 27,574.61 and 11,913.91 is: 16,443.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.25 : 27,574.61 = 11,913.91 : x
  2. Step 2: Convert to fraction form
    19,979.25/27,574.61 = 11,913.91/x
  3. Step 3: Cross multiply
    19,979.25x = 27,574.61 × 11,913.91
  4. Step 4: Simplify right side
    19,979.25x = 328,521,362.26
  5. Step 5: Solve for x
    x = 328,521,362.26/19,979.25
  6. Step 6: Final answer
    x = 16,443.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.