Home / 21,620.50-29,844.38-16,830.96

Finding the Fourth Proportional to 21,620.50, 29,844.38 and 16,830.96

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Solution

The fourth proportional to 21,620.50, 29,844.38 and 16,830.96 is: 23,233.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,620.50 : 29,844.38 = 16,830.96 : x
  2. Step 2: Convert to fraction form
    21,620.50/29,844.38 = 16,830.96/x
  3. Step 3: Cross multiply
    21,620.50x = 29,844.38 × 16,830.96
  4. Step 4: Simplify right side
    21,620.50x = 502,309,566.00
  5. Step 5: Solve for x
    x = 502,309,566.00/21,620.50
  6. Step 6: Final answer
    x = 23,233.02

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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.