Home / 19,590.72-27,016.48-12,882

Finding the Fourth Proportional to 19,590.72, 27,016.48 and 12,882

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Solution

The fourth proportional to 19,590.72, 27,016.48 and 12,882 is: 17,764.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,590.72 : 27,016.48 = 12,882 : x
  2. Step 2: Convert to fraction form
    19,590.72/27,016.48 = 12,882/x
  3. Step 3: Cross multiply
    19,590.72x = 27,016.48 × 12,882
  4. Step 4: Simplify right side
    19,590.72x = 348,026,295.36
  5. Step 5: Solve for x
    x = 348,026,295.36/19,590.72
  6. Step 6: Final answer
    x = 17,764.85

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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.