Home / 20,106.70-30,167.36-6,960.40

Finding the Fourth Proportional to 20,106.70, 30,167.36 and 6,960.40

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Solution

The fourth proportional to 20,106.70, 30,167.36 and 6,960.40 is: 10,443.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.70 : 30,167.36 = 6,960.40 : x
  2. Step 2: Convert to fraction form
    20,106.70/30,167.36 = 6,960.40/x
  3. Step 3: Cross multiply
    20,106.70x = 30,167.36 × 6,960.40
  4. Step 4: Simplify right side
    20,106.70x = 209,976,892.54
  5. Step 5: Solve for x
    x = 209,976,892.54/20,106.70
  6. Step 6: Final answer
    x = 10,443.13

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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.