Home / 21,175.04-29,221.38-11,743.58

Finding the Fourth Proportional to 21,175.04, 29,221.38 and 11,743.58

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Solution

The fourth proportional to 21,175.04, 29,221.38 and 11,743.58 is: 16,206.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,175.04 : 29,221.38 = 11,743.58 : x
  2. Step 2: Convert to fraction form
    21,175.04/29,221.38 = 11,743.58/x
  3. Step 3: Cross multiply
    21,175.04x = 29,221.38 × 11,743.58
  4. Step 4: Simplify right side
    21,175.04x = 343,163,467.63
  5. Step 5: Solve for x
    x = 343,163,467.63/21,175.04
  6. Step 6: Final answer
    x = 16,206.04

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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.