Home / 20,963.96-31,446.86-6,925.22

Finding the Fourth Proportional to 20,963.96, 31,446.86 and 6,925.22

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Solution

The fourth proportional to 20,963.96, 31,446.86 and 6,925.22 is: 10,388.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,963.96 : 31,446.86 = 6,925.22 : x
  2. Step 2: Convert to fraction form
    20,963.96/31,446.86 = 6,925.22/x
  3. Step 3: Cross multiply
    20,963.96x = 31,446.86 × 6,925.22
  4. Step 4: Simplify right side
    20,963.96x = 217,776,231.95
  5. Step 5: Solve for x
    x = 217,776,231.95/20,963.96
  6. Step 6: Final answer
    x = 10,388.13

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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.