Home / 21,175.74-29,221.70-11,744.10

Finding the Fourth Proportional to 21,175.74, 29,221.70 and 11,744.10

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Solution

The fourth proportional to 21,175.74, 29,221.70 and 11,744.10 is: 16,206.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,175.74 : 29,221.70 = 11,744.10 : x
  2. Step 2: Convert to fraction form
    21,175.74/29,221.70 = 11,744.10/x
  3. Step 3: Cross multiply
    21,175.74x = 29,221.70 × 11,744.10
  4. Step 4: Simplify right side
    21,175.74x = 343,182,508.25
  5. Step 5: Solve for x
    x = 343,182,508.25/21,175.74
  6. Step 6: Final answer
    x = 16,206.40

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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.