Home / 19,590.95-27,028.87-12,876.05

Finding the Fourth Proportional to 19,590.95, 27,028.87 and 12,876.05

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Solution

The fourth proportional to 19,590.95, 27,028.87 and 12,876.05 is: 17,764.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,590.95 : 27,028.87 = 12,876.05 : x
  2. Step 2: Convert to fraction form
    19,590.95/27,028.87 = 12,876.05/x
  3. Step 3: Cross multiply
    19,590.95x = 27,028.87 × 12,876.05
  4. Step 4: Simplify right side
    19,590.95x = 348,025,081.56
  5. Step 5: Solve for x
    x = 348,025,081.56/19,590.95
  6. Step 6: Final answer
    x = 17,764.58

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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.