Home / 21,173.04-29,220.84-11,743.92

Finding the Fourth Proportional to 21,173.04, 29,220.84 and 11,743.92

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Solution

The fourth proportional to 21,173.04, 29,220.84 and 11,743.92 is: 16,207.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173.04 : 29,220.84 = 11,743.92 : x
  2. Step 2: Convert to fraction form
    21,173.04/29,220.84 = 11,743.92/x
  3. Step 3: Cross multiply
    21,173.04x = 29,220.84 × 11,743.92
  4. Step 4: Simplify right side
    21,173.04x = 343,167,207.29
  5. Step 5: Solve for x
    x = 343,167,207.29/21,173.04
  6. Step 6: Final answer
    x = 16,207.74

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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.