Home / 21,173.96-29,219.36-11,743.22

Finding the Fourth Proportional to 21,173.96, 29,219.36 and 11,743.22

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Solution

The fourth proportional to 21,173.96, 29,219.36 and 11,743.22 is: 16,205.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173.96 : 29,219.36 = 11,743.22 : x
  2. Step 2: Convert to fraction form
    21,173.96/29,219.36 = 11,743.22/x
  3. Step 3: Cross multiply
    21,173.96x = 29,219.36 × 11,743.22
  4. Step 4: Simplify right side
    21,173.96x = 343,129,372.74
  5. Step 5: Solve for x
    x = 343,129,372.74/21,173.96
  6. Step 6: Final answer
    x = 16,205.25

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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.