Home / 20,106.12-30,162.03-6,955.38

Finding the Fourth Proportional to 20,106.12, 30,162.03 and 6,955.38

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Solution

The fourth proportional to 20,106.12, 30,162.03 and 6,955.38 is: 10,434.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.12 : 30,162.03 = 6,955.38 : x
  2. Step 2: Convert to fraction form
    20,106.12/30,162.03 = 6,955.38/x
  3. Step 3: Cross multiply
    20,106.12x = 30,162.03 × 6,955.38
  4. Step 4: Simplify right side
    20,106.12x = 209,788,380.22
  5. Step 5: Solve for x
    x = 209,788,380.22/20,106.12
  6. Step 6: Final answer
    x = 10,434.06

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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.