Home / 21,153.66-29,192.05-11,722.22

Finding the Fourth Proportional to 21,153.66, 29,192.05 and 11,722.22

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Solution

The fourth proportional to 21,153.66, 29,192.05 and 11,722.22 is: 16,176.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153.66 : 29,192.05 = 11,722.22 : x
  2. Step 2: Convert to fraction form
    21,153.66/29,192.05 = 11,722.22/x
  3. Step 3: Cross multiply
    21,153.66x = 29,192.05 × 11,722.22
  4. Step 4: Simplify right side
    21,153.66x = 342,195,544.58
  5. Step 5: Solve for x
    x = 342,195,544.58/21,153.66
  6. Step 6: Final answer
    x = 16,176.66

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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.