Home / 21,655.62-29,884.52-12,224.58

Finding the Fourth Proportional to 21,655.62, 29,884.52 and 12,224.58

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Solution

The fourth proportional to 21,655.62, 29,884.52 and 12,224.58 is: 16,869.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.62 : 29,884.52 = 12,224.58 : x
  2. Step 2: Convert to fraction form
    21,655.62/29,884.52 = 12,224.58/x
  3. Step 3: Cross multiply
    21,655.62x = 29,884.52 × 12,224.58
  4. Step 4: Simplify right side
    21,655.62x = 365,325,705.50
  5. Step 5: Solve for x
    x = 365,325,705.50/21,655.62
  6. Step 6: Final answer
    x = 16,869.79

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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.