Home / 21,164.80-29,205.36-11,733.16

Finding the Fourth Proportional to 21,164.80, 29,205.36 and 11,733.16

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Solution

The fourth proportional to 21,164.80, 29,205.36 and 11,733.16 is: 16,190.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.80 : 29,205.36 = 11,733.16 : x
  2. Step 2: Convert to fraction form
    21,164.80/29,205.36 = 11,733.16/x
  3. Step 3: Cross multiply
    21,164.80x = 29,205.36 × 11,733.16
  4. Step 4: Simplify right side
    21,164.80x = 342,671,161.74
  5. Step 5: Solve for x
    x = 342,671,161.74/21,164.80
  6. Step 6: Final answer
    x = 16,190.62

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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.