Home / 21,736.81-29,997.92-12,176.13

Finding the Fourth Proportional to 21,736.81, 29,997.92 and 12,176.13

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Solution

The fourth proportional to 21,736.81, 29,997.92 and 12,176.13 is: 16,803.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,736.81 : 29,997.92 = 12,176.13 : x
  2. Step 2: Convert to fraction form
    21,736.81/29,997.92 = 12,176.13/x
  3. Step 3: Cross multiply
    21,736.81x = 29,997.92 × 12,176.13
  4. Step 4: Simplify right side
    21,736.81x = 365,258,573.65
  5. Step 5: Solve for x
    x = 365,258,573.65/21,736.81
  6. Step 6: Final answer
    x = 16,803.69

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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.