Home / 21,215.44-29,282.56-12,268.13

Finding the Fourth Proportional to 21,215.44, 29,282.56 and 12,268.13

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Solution

The fourth proportional to 21,215.44, 29,282.56 and 12,268.13 is: 16,933.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,215.44 : 29,282.56 = 12,268.13 : x
  2. Step 2: Convert to fraction form
    21,215.44/29,282.56 = 12,268.13/x
  3. Step 3: Cross multiply
    21,215.44x = 29,282.56 × 12,268.13
  4. Step 4: Simplify right side
    21,215.44x = 359,242,144.74
  5. Step 5: Solve for x
    x = 359,242,144.74/21,215.44
  6. Step 6: Final answer
    x = 16,933.06

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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.