Home / 21,173.92-29,217.60-11,740.08

Finding the Fourth Proportional to 21,173.92, 29,217.60 and 11,740.08

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Solution

The fourth proportional to 21,173.92, 29,217.60 and 11,740.08 is: 16,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173.92 : 29,217.60 = 11,740.08 : x
  2. Step 2: Convert to fraction form
    21,173.92/29,217.60 = 11,740.08/x
  3. Step 3: Cross multiply
    21,173.92x = 29,217.60 × 11,740.08
  4. Step 4: Simplify right side
    21,173.92x = 343,016,961.41
  5. Step 5: Solve for x
    x = 343,016,961.41/21,173.92
  6. Step 6: Final answer
    x = 16,199.97

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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.