Home / 20,087.70-30,131.39-6,047.69

Finding the Fourth Proportional to 20,087.70, 30,131.39 and 6,047.69

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Solution

The fourth proportional to 20,087.70, 30,131.39 and 6,047.69 is: 9,071.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.70 : 30,131.39 = 6,047.69 : x
  2. Step 2: Convert to fraction form
    20,087.70/30,131.39 = 6,047.69/x
  3. Step 3: Cross multiply
    20,087.70x = 30,131.39 × 6,047.69
  4. Step 4: Simplify right side
    20,087.70x = 182,225,125.09
  5. Step 5: Solve for x
    x = 182,225,125.09/20,087.70
  6. Step 6: Final answer
    x = 9,071.48

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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.