Home / 20,007.29-30,016.15-11,694.40

Finding the Fourth Proportional to 20,007.29, 30,016.15 and 11,694.40

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Solution

The fourth proportional to 20,007.29, 30,016.15 and 11,694.40 is: 17,544.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.29 : 30,016.15 = 11,694.40 : x
  2. Step 2: Convert to fraction form
    20,007.29/30,016.15 = 11,694.40/x
  3. Step 3: Cross multiply
    20,007.29x = 30,016.15 × 11,694.40
  4. Step 4: Simplify right side
    20,007.29x = 351,020,864.56
  5. Step 5: Solve for x
    x = 351,020,864.56/20,007.29
  6. Step 6: Final answer
    x = 17,544.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.