Home / 21,085.26-29,098.06-11,653.62

Finding the Fourth Proportional to 21,085.26, 29,098.06 and 11,653.62

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Solution

The fourth proportional to 21,085.26, 29,098.06 and 11,653.62 is: 16,082.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,085.26 : 29,098.06 = 11,653.62 : x
  2. Step 2: Convert to fraction form
    21,085.26/29,098.06 = 11,653.62/x
  3. Step 3: Cross multiply
    21,085.26x = 29,098.06 × 11,653.62
  4. Step 4: Simplify right side
    21,085.26x = 339,097,733.98
  5. Step 5: Solve for x
    x = 339,097,733.98/21,085.26
  6. Step 6: Final answer
    x = 16,082.22

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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.