Home / 21,963.11-30,313.40-17,173.58

Finding the Fourth Proportional to 21,963.11, 30,313.40 and 17,173.58

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Solution

The fourth proportional to 21,963.11, 30,313.40 and 17,173.58 is: 23,702.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.11 : 30,313.40 = 17,173.58 : x
  2. Step 2: Convert to fraction form
    21,963.11/30,313.40 = 17,173.58/x
  3. Step 3: Cross multiply
    21,963.11x = 30,313.40 × 17,173.58
  4. Step 4: Simplify right side
    21,963.11x = 520,589,362.54
  5. Step 5: Solve for x
    x = 520,589,362.54/21,963.11
  6. Step 6: Final answer
    x = 23,702.90

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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.