Home / 21,079.44-29,088.36-11,647.80

Finding the Fourth Proportional to 21,079.44, 29,088.36 and 11,647.80

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Solution

The fourth proportional to 21,079.44, 29,088.36 and 11,647.80 is: 16,073.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.44 : 29,088.36 = 11,647.80 : x
  2. Step 2: Convert to fraction form
    21,079.44/29,088.36 = 11,647.80/x
  3. Step 3: Cross multiply
    21,079.44x = 29,088.36 × 11,647.80
  4. Step 4: Simplify right side
    21,079.44x = 338,815,399.61
  5. Step 5: Solve for x
    x = 338,815,399.61/21,079.44
  6. Step 6: Final answer
    x = 16,073.26

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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.