Home / 21,448.29-29,597.92-11,887.77

Finding the Fourth Proportional to 21,448.29, 29,597.92 and 11,887.77

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Solution

The fourth proportional to 21,448.29, 29,597.92 and 11,887.77 is: 16,404.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.29 : 29,597.92 = 11,887.77 : x
  2. Step 2: Convert to fraction form
    21,448.29/29,597.92 = 11,887.77/x
  3. Step 3: Cross multiply
    21,448.29x = 29,597.92 × 11,887.77
  4. Step 4: Simplify right side
    21,448.29x = 351,853,265.44
  5. Step 5: Solve for x
    x = 351,853,265.44/21,448.29
  6. Step 6: Final answer
    x = 16,404.72

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1.5x scale

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.