Home / 21,926.51-30,257.78-12,493.25

Finding the Fourth Proportional to 21,926.51, 30,257.78 and 12,493.25

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Solution

The fourth proportional to 21,926.51, 30,257.78 and 12,493.25 is: 17,240.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,926.51 : 30,257.78 = 12,493.25 : x
  2. Step 2: Convert to fraction form
    21,926.51/30,257.78 = 12,493.25/x
  3. Step 3: Cross multiply
    21,926.51x = 30,257.78 × 12,493.25
  4. Step 4: Simplify right side
    21,926.51x = 378,017,796.23
  5. Step 5: Solve for x
    x = 378,017,796.23/21,926.51
  6. Step 6: Final answer
    x = 17,240.22

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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.