Home / 21,955.03-30,297.98-13,006.96

Finding the Fourth Proportional to 21,955.03, 30,297.98 and 13,006.96

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Solution

The fourth proportional to 21,955.03, 30,297.98 and 13,006.96 is: 17,949.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.03 : 30,297.98 = 13,006.96 : x
  2. Step 2: Convert to fraction form
    21,955.03/30,297.98 = 13,006.96/x
  3. Step 3: Cross multiply
    21,955.03x = 30,297.98 × 13,006.96
  4. Step 4: Simplify right side
    21,955.03x = 394,084,613.94
  5. Step 5: Solve for x
    x = 394,084,613.94/21,955.03
  6. Step 6: Final answer
    x = 17,949.63

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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.