Home / 20,109.64-30,165.90-6,963.88

Finding the Fourth Proportional to 20,109.64, 30,165.90 and 6,963.88

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Solution

The fourth proportional to 20,109.64, 30,165.90 and 6,963.88 is: 10,446.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109.64 : 30,165.90 = 6,963.88 : x
  2. Step 2: Convert to fraction form
    20,109.64/30,165.90 = 6,963.88/x
  3. Step 3: Cross multiply
    20,109.64x = 30,165.90 × 6,963.88
  4. Step 4: Simplify right side
    20,109.64x = 210,071,707.69
  5. Step 5: Solve for x
    x = 210,071,707.69/20,109.64
  6. Step 6: Final answer
    x = 10,446.32

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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.