Home / 20,113.04-30,162.36-6,961.88

Finding the Fourth Proportional to 20,113.04, 30,162.36 and 6,961.88

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Solution

The fourth proportional to 20,113.04, 30,162.36 and 6,961.88 is: 10,440.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.04 : 30,162.36 = 6,961.88 : x
  2. Step 2: Convert to fraction form
    20,113.04/30,162.36 = 6,961.88/x
  3. Step 3: Cross multiply
    20,113.04x = 30,162.36 × 6,961.88
  4. Step 4: Simplify right side
    20,113.04x = 209,986,730.84
  5. Step 5: Solve for x
    x = 209,986,730.84/20,113.04
  6. Step 6: Final answer
    x = 10,440.33

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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.