Home / 21,923.84-30,251.44-12,488.96

Finding the Fourth Proportional to 21,923.84, 30,251.44 and 12,488.96

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Solution

The fourth proportional to 21,923.84, 30,251.44 and 12,488.96 is: 17,232.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923.84 : 30,251.44 = 12,488.96 : x
  2. Step 2: Convert to fraction form
    21,923.84/30,251.44 = 12,488.96/x
  3. Step 3: Cross multiply
    21,923.84x = 30,251.44 × 12,488.96
  4. Step 4: Simplify right side
    21,923.84x = 377,809,024.10
  5. Step 5: Solve for x
    x = 377,809,024.10/21,923.84
  6. Step 6: Final answer
    x = 17,232.79

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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.