Home / 20,071.07-30,097.17-11,639.97

Finding the Fourth Proportional to 20,071.07, 30,097.17 and 11,639.97

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Solution

The fourth proportional to 20,071.07, 30,097.17 and 11,639.97 is: 17,454.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.07 : 30,097.17 = 11,639.97 : x
  2. Step 2: Convert to fraction form
    20,071.07/30,097.17 = 11,639.97/x
  3. Step 3: Cross multiply
    20,071.07x = 30,097.17 × 11,639.97
  4. Step 4: Simplify right side
    20,071.07x = 350,330,087.64
  5. Step 5: Solve for x
    x = 350,330,087.64/20,071.07
  6. Step 6: Final answer
    x = 17,454.48

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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.