Home / 21,998.28-30,245.22-19,585.29

Finding the Fourth Proportional to 21,998.28, 30,245.22 and 19,585.29

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Solution

The fourth proportional to 21,998.28, 30,245.22 and 19,585.29 is: 26,927.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.28 : 30,245.22 = 19,585.29 : x
  2. Step 2: Convert to fraction form
    21,998.28/30,245.22 = 19,585.29/x
  3. Step 3: Cross multiply
    21,998.28x = 30,245.22 × 19,585.29
  4. Step 4: Simplify right side
    21,998.28x = 592,361,306.89
  5. Step 5: Solve for x
    x = 592,361,306.89/21,998.28
  6. Step 6: Final answer
    x = 26,927.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.