Home / 20,112.91-30,162.53-6,962.20

Finding the Fourth Proportional to 20,112.91, 30,162.53 and 6,962.20

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Solution

The fourth proportional to 20,112.91, 30,162.53 and 6,962.20 is: 10,440.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.91 : 30,162.53 = 6,962.20 : x
  2. Step 2: Convert to fraction form
    20,112.91/30,162.53 = 6,962.20/x
  3. Step 3: Cross multiply
    20,112.91x = 30,162.53 × 6,962.20
  4. Step 4: Simplify right side
    20,112.91x = 209,997,638.87
  5. Step 5: Solve for x
    x = 209,997,638.87/20,112.91
  6. Step 6: Final answer
    x = 10,440.94

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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.