Home / 20,945.58-31,411.66-6,902.46

Finding the Fourth Proportional to 20,945.58, 31,411.66 and 6,902.46

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Solution

The fourth proportional to 20,945.58, 31,411.66 and 6,902.46 is: 10,351.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,945.58 : 31,411.66 = 6,902.46 : x
  2. Step 2: Convert to fraction form
    20,945.58/31,411.66 = 6,902.46/x
  3. Step 3: Cross multiply
    20,945.58x = 31,411.66 × 6,902.46
  4. Step 4: Simplify right side
    20,945.58x = 216,817,709.43
  5. Step 5: Solve for x
    x = 216,817,709.43/20,945.58
  6. Step 6: Final answer
    x = 10,351.48

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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.