Home / 21,016.08-29,002.18-11,584.80

Finding the Fourth Proportional to 21,016.08, 29,002.18 and 11,584.80

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Solution

The fourth proportional to 21,016.08, 29,002.18 and 11,584.80 is: 15,987.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016.08 : 29,002.18 = 11,584.80 : x
  2. Step 2: Convert to fraction form
    21,016.08/29,002.18 = 11,584.80/x
  3. Step 3: Cross multiply
    21,016.08x = 29,002.18 × 11,584.80
  4. Step 4: Simplify right side
    21,016.08x = 335,984,454.86
  5. Step 5: Solve for x
    x = 335,984,454.86/21,016.08
  6. Step 6: Final answer
    x = 15,987.02

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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.