Home / 21,591.36-29,795.04-12,162.96

Finding the Fourth Proportional to 21,591.36, 29,795.04 and 12,162.96

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Solution

The fourth proportional to 21,591.36, 29,795.04 and 12,162.96 is: 16,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,591.36 : 29,795.04 = 12,162.96 : x
  2. Step 2: Convert to fraction form
    21,591.36/29,795.04 = 12,162.96/x
  3. Step 3: Cross multiply
    21,591.36x = 29,795.04 × 12,162.96
  4. Step 4: Simplify right side
    21,591.36x = 362,395,879.72
  5. Step 5: Solve for x
    x = 362,395,879.72/21,591.36
  6. Step 6: Final answer
    x = 16,784.30

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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.