Home / 19,991.10-27,587.76-11,038.62

Finding the Fourth Proportional to 19,991.10, 27,587.76 and 11,038.62

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Solution

The fourth proportional to 19,991.10, 27,587.76 and 11,038.62 is: 15,233.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.10 : 27,587.76 = 11,038.62 : x
  2. Step 2: Convert to fraction form
    19,991.10/27,587.76 = 11,038.62/x
  3. Step 3: Cross multiply
    19,991.10x = 27,587.76 × 11,038.62
  4. Step 4: Simplify right side
    19,991.10x = 304,530,799.29
  5. Step 5: Solve for x
    x = 304,530,799.29/19,991.10
  6. Step 6: Final answer
    x = 15,233.32

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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.