Home / 21,719.09-29,958.68-16,675.62

Finding the Fourth Proportional to 21,719.09, 29,958.68 and 16,675.62

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Solution

The fourth proportional to 21,719.09, 29,958.68 and 16,675.62 is: 23,001.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,719.09 : 29,958.68 = 16,675.62 : x
  2. Step 2: Convert to fraction form
    21,719.09/29,958.68 = 16,675.62/x
  3. Step 3: Cross multiply
    21,719.09x = 29,958.68 × 16,675.62
  4. Step 4: Simplify right side
    21,719.09x = 499,579,480.00
  5. Step 5: Solve for x
    x = 499,579,480.00/21,719.09
  6. Step 6: Final answer
    x = 23,001.87

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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.