Home / 21,176.30-29,221.34-11,743.04

Finding the Fourth Proportional to 21,176.30, 29,221.34 and 11,743.04

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Solution

The fourth proportional to 21,176.30, 29,221.34 and 11,743.04 is: 16,204.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.30 : 29,221.34 = 11,743.04 : x
  2. Step 2: Convert to fraction form
    21,176.30/29,221.34 = 11,743.04/x
  3. Step 3: Cross multiply
    21,176.30x = 29,221.34 × 11,743.04
  4. Step 4: Simplify right side
    21,176.30x = 343,147,364.47
  5. Step 5: Solve for x
    x = 343,147,364.47/21,176.30
  6. Step 6: Final answer
    x = 16,204.31

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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.