Home / 21,110.43-29,137.26-13,941.77

Finding the Fourth Proportional to 21,110.43, 29,137.26 and 13,941.77

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Solution

The fourth proportional to 21,110.43, 29,137.26 and 13,941.77 is: 19,242.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,110.43 : 29,137.26 = 13,941.77 : x
  2. Step 2: Convert to fraction form
    21,110.43/29,137.26 = 13,941.77/x
  3. Step 3: Cross multiply
    21,110.43x = 29,137.26 × 13,941.77
  4. Step 4: Simplify right side
    21,110.43x = 406,224,779.38
  5. Step 5: Solve for x
    x = 406,224,779.38/21,110.43
  6. Step 6: Final answer
    x = 19,242.85

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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.