Home / 21,079.91-29,090.06-11,648.27

Finding the Fourth Proportional to 21,079.91, 29,090.06 and 11,648.27

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Solution

The fourth proportional to 21,079.91, 29,090.06 and 11,648.27 is: 16,074.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.91 : 29,090.06 = 11,648.27 : x
  2. Step 2: Convert to fraction form
    21,079.91/29,090.06 = 11,648.27/x
  3. Step 3: Cross multiply
    21,079.91x = 29,090.06 × 11,648.27
  4. Step 4: Simplify right side
    21,079.91x = 338,848,727.75
  5. Step 5: Solve for x
    x = 338,848,727.75/21,079.91
  6. Step 6: Final answer
    x = 16,074.49

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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.