Home / 20,082.90-27,718.26-11,590.50

Finding the Fourth Proportional to 20,082.90, 27,718.26 and 11,590.50

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Solution

The fourth proportional to 20,082.90, 27,718.26 and 11,590.50 is: 15,997.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.90 : 27,718.26 = 11,590.50 : x
  2. Step 2: Convert to fraction form
    20,082.90/27,718.26 = 11,590.50/x
  3. Step 3: Cross multiply
    20,082.90x = 27,718.26 × 11,590.50
  4. Step 4: Simplify right side
    20,082.90x = 321,268,492.53
  5. Step 5: Solve for x
    x = 321,268,492.53/20,082.90
  6. Step 6: Final answer
    x = 15,997.12

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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.