Home / 14,640.91-21,983.23-14,422.21

Finding the Fourth Proportional to 14,640.91, 21,983.23 and 14,422.21

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Solution

The fourth proportional to 14,640.91, 21,983.23 and 14,422.21 is: 21,654.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.91 : 21,983.23 = 14,422.21 : x
  2. Step 2: Convert to fraction form
    14,640.91/21,983.23 = 14,422.21/x
  3. Step 3: Cross multiply
    14,640.91x = 21,983.23 × 14,422.21
  4. Step 4: Simplify right side
    14,640.91x = 317,046,649.62
  5. Step 5: Solve for x
    x = 317,046,649.62/14,640.91
  6. Step 6: Final answer
    x = 21,654.85

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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.