Home / 21,927.12-30,261.24-12,496.56

Finding the Fourth Proportional to 21,927.12, 30,261.24 and 12,496.56

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Solution

The fourth proportional to 21,927.12, 30,261.24 and 12,496.56 is: 17,246.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,927.12 : 30,261.24 = 12,496.56 : x
  2. Step 2: Convert to fraction form
    21,927.12/30,261.24 = 12,496.56/x
  3. Step 3: Cross multiply
    21,927.12x = 30,261.24 × 12,496.56
  4. Step 4: Simplify right side
    21,927.12x = 378,161,401.33
  5. Step 5: Solve for x
    x = 378,161,401.33/21,927.12
  6. Step 6: Final answer
    x = 17,246.29

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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.