Home / 21,184.83-29,220.80-17,725.73

Finding the Fourth Proportional to 21,184.83, 29,220.80 and 17,725.73

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Solution

The fourth proportional to 21,184.83, 29,220.80 and 17,725.73 is: 24,449.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.83 : 29,220.80 = 17,725.73 : x
  2. Step 2: Convert to fraction form
    21,184.83/29,220.80 = 17,725.73/x
  3. Step 3: Cross multiply
    21,184.83x = 29,220.80 × 17,725.73
  4. Step 4: Simplify right side
    21,184.83x = 517,959,776.45
  5. Step 5: Solve for x
    x = 517,959,776.45/21,184.83
  6. Step 6: Final answer
    x = 24,449.56

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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.