Home / 21,237.74-29,305.53-11,676.05

Finding the Fourth Proportional to 21,237.74, 29,305.53 and 11,676.05

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Solution

The fourth proportional to 21,237.74, 29,305.53 and 11,676.05 is: 16,111.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,237.74 : 29,305.53 = 11,676.05 : x
  2. Step 2: Convert to fraction form
    21,237.74/29,305.53 = 11,676.05/x
  3. Step 3: Cross multiply
    21,237.74x = 29,305.53 × 11,676.05
  4. Step 4: Simplify right side
    21,237.74x = 342,172,833.56
  5. Step 5: Solve for x
    x = 342,172,833.56/21,237.74
  6. Step 6: Final answer
    x = 16,111.55

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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.