Home / 21,295.68-31,940.16-5,714.56

Finding the Fourth Proportional to 21,295.68, 31,940.16 and 5,714.56

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Solution

The fourth proportional to 21,295.68, 31,940.16 and 5,714.56 is: 8,570.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.68 : 31,940.16 = 5,714.56 : x
  2. Step 2: Convert to fraction form
    21,295.68/31,940.16 = 5,714.56/x
  3. Step 3: Cross multiply
    21,295.68x = 31,940.16 × 5,714.56
  4. Step 4: Simplify right side
    21,295.68x = 182,523,960.73
  5. Step 5: Solve for x
    x = 182,523,960.73/21,295.68
  6. Step 6: Final answer
    x = 8,570.94

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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.