Home / 20,106.36-30,161.60-6,955.66

Finding the Fourth Proportional to 20,106.36, 30,161.60 and 6,955.66

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Solution

The fourth proportional to 20,106.36, 30,161.60 and 6,955.66 is: 10,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.36 : 30,161.60 = 6,955.66 : x
  2. Step 2: Convert to fraction form
    20,106.36/30,161.60 = 6,955.66/x
  3. Step 3: Cross multiply
    20,106.36x = 30,161.60 × 6,955.66
  4. Step 4: Simplify right side
    20,106.36x = 209,793,834.66
  5. Step 5: Solve for x
    x = 209,793,834.66/20,106.36
  6. Step 6: Final answer
    x = 10,434.20

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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.