Home / 21,016.14-29,001.72-11,584.74

Finding the Fourth Proportional to 21,016.14, 29,001.72 and 11,584.74

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Solution

The fourth proportional to 21,016.14, 29,001.72 and 11,584.74 is: 15,986.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016.14 : 29,001.72 = 11,584.74 : x
  2. Step 2: Convert to fraction form
    21,016.14/29,001.72 = 11,584.74/x
  3. Step 3: Cross multiply
    21,016.14x = 29,001.72 × 11,584.74
  4. Step 4: Simplify right side
    21,016.14x = 335,977,385.75
  5. Step 5: Solve for x
    x = 335,977,385.75/21,016.14
  6. Step 6: Final answer
    x = 15,986.64

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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.