Home / 21,743.92-29,977.32-14,175.28

Finding the Fourth Proportional to 21,743.92, 29,977.32 and 14,175.28

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Solution

The fourth proportional to 21,743.92, 29,977.32 and 14,175.28 is: 19,542.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,743.92 : 29,977.32 = 14,175.28 : x
  2. Step 2: Convert to fraction form
    21,743.92/29,977.32 = 14,175.28/x
  3. Step 3: Cross multiply
    21,743.92x = 29,977.32 × 14,175.28
  4. Step 4: Simplify right side
    21,743.92x = 424,936,904.65
  5. Step 5: Solve for x
    x = 424,936,904.65/21,743.92
  6. Step 6: Final answer
    x = 19,542.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.