Home / 20,996.69-31,496.70-6,956.15

Finding the Fourth Proportional to 20,996.69, 31,496.70 and 6,956.15

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Solution

The fourth proportional to 20,996.69, 31,496.70 and 6,956.15 is: 10,434.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996.69 : 31,496.70 = 6,956.15 : x
  2. Step 2: Convert to fraction form
    20,996.69/31,496.70 = 6,956.15/x
  3. Step 3: Cross multiply
    20,996.69x = 31,496.70 × 6,956.15
  4. Step 4: Simplify right side
    20,996.69x = 219,095,612.22
  5. Step 5: Solve for x
    x = 219,095,612.22/20,996.69
  6. Step 6: Final answer
    x = 10,434.77

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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.