Home / 21,998.07-30,382.38-14,912.19

Finding the Fourth Proportional to 21,998.07, 30,382.38 and 14,912.19

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Solution

The fourth proportional to 21,998.07, 30,382.38 and 14,912.19 is: 20,595.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.07 : 30,382.38 = 14,912.19 : x
  2. Step 2: Convert to fraction form
    21,998.07/30,382.38 = 14,912.19/x
  3. Step 3: Cross multiply
    21,998.07x = 30,382.38 × 14,912.19
  4. Step 4: Simplify right side
    21,998.07x = 453,067,823.21
  5. Step 5: Solve for x
    x = 453,067,823.21/21,998.07
  6. Step 6: Final answer
    x = 20,595.80

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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.