Home / 21,923.94-30,237.93-13,418.94

Finding the Fourth Proportional to 21,923.94, 30,237.93 and 13,418.94

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Solution

The fourth proportional to 21,923.94, 30,237.93 and 13,418.94 is: 18,507.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923.94 : 30,237.93 = 13,418.94 : x
  2. Step 2: Convert to fraction form
    21,923.94/30,237.93 = 13,418.94/x
  3. Step 3: Cross multiply
    21,923.94x = 30,237.93 × 13,418.94
  4. Step 4: Simplify right side
    21,923.94x = 405,760,968.39
  5. Step 5: Solve for x
    x = 405,760,968.39/21,923.94
  6. Step 6: Final answer
    x = 18,507.67

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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.