Home / 21,935.07-30,270.31-11,863.53

Finding the Fourth Proportional to 21,935.07, 30,270.31 and 11,863.53

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Solution

The fourth proportional to 21,935.07, 30,270.31 and 11,863.53 is: 16,371.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.07 : 30,270.31 = 11,863.53 : x
  2. Step 2: Convert to fraction form
    21,935.07/30,270.31 = 11,863.53/x
  3. Step 3: Cross multiply
    21,935.07x = 30,270.31 × 11,863.53
  4. Step 4: Simplify right side
    21,935.07x = 359,112,579.44
  5. Step 5: Solve for x
    x = 359,112,579.44/21,935.07
  6. Step 6: Final answer
    x = 16,371.62

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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.