Home / 20,087.14-30,138.91-6,948.74

Finding the Fourth Proportional to 20,087.14, 30,138.91 and 6,948.74

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Solution

The fourth proportional to 20,087.14, 30,138.91 and 6,948.74 is: 10,425.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.14 : 30,138.91 = 6,948.74 : x
  2. Step 2: Convert to fraction form
    20,087.14/30,138.91 = 6,948.74/x
  3. Step 3: Cross multiply
    20,087.14x = 30,138.91 × 6,948.74
  4. Step 4: Simplify right side
    20,087.14x = 209,427,357.46
  5. Step 5: Solve for x
    x = 209,427,357.46/20,087.14
  6. Step 6: Final answer
    x = 10,425.94

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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.