Home / 21,809.22-30,066.49-14,724.42

Finding the Fourth Proportional to 21,809.22, 30,066.49 and 14,724.42

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Solution

The fourth proportional to 21,809.22, 30,066.49 and 14,724.42 is: 20,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,809.22 : 30,066.49 = 14,724.42 : x
  2. Step 2: Convert to fraction form
    21,809.22/30,066.49 = 14,724.42/x
  3. Step 3: Cross multiply
    21,809.22x = 30,066.49 × 14,724.42
  4. Step 4: Simplify right side
    21,809.22x = 442,711,626.69
  5. Step 5: Solve for x
    x = 442,711,626.69/21,809.22
  6. Step 6: Final answer
    x = 20,299.29

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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.