Home / 21,237.86-29,305.69-11,676.17

Finding the Fourth Proportional to 21,237.86, 29,305.69 and 11,676.17

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Solution

The fourth proportional to 21,237.86, 29,305.69 and 11,676.17 is: 16,111.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,237.86 : 29,305.69 = 11,676.17 : x
  2. Step 2: Convert to fraction form
    21,237.86/29,305.69 = 11,676.17/x
  3. Step 3: Cross multiply
    21,237.86x = 29,305.69 × 11,676.17
  4. Step 4: Simplify right side
    21,237.86x = 342,178,262.48
  5. Step 5: Solve for x
    x = 342,178,262.48/21,237.86
  6. Step 6: Final answer
    x = 16,111.71

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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.