Home / 20,961.24-31,445.73-6,922.24

Finding the Fourth Proportional to 20,961.24, 31,445.73 and 6,922.24

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Solution

The fourth proportional to 20,961.24, 31,445.73 and 6,922.24 is: 10,384.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,961.24 : 31,445.73 = 6,922.24 : x
  2. Step 2: Convert to fraction form
    20,961.24/31,445.73 = 6,922.24/x
  3. Step 3: Cross multiply
    20,961.24x = 31,445.73 × 6,922.24
  4. Step 4: Simplify right side
    20,961.24x = 217,674,890.04
  5. Step 5: Solve for x
    x = 217,674,890.04/20,961.24
  6. Step 6: Final answer
    x = 10,384.64

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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.