Home / 21,932.88-30,237.75-18,942.36

Finding the Fourth Proportional to 21,932.88, 30,237.75 and 18,942.36

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Solution

The fourth proportional to 21,932.88, 30,237.75 and 18,942.36 is: 26,114.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,932.88 : 30,237.75 = 18,942.36 : x
  2. Step 2: Convert to fraction form
    21,932.88/30,237.75 = 18,942.36/x
  3. Step 3: Cross multiply
    21,932.88x = 30,237.75 × 18,942.36
  4. Step 4: Simplify right side
    21,932.88x = 572,774,346.09
  5. Step 5: Solve for x
    x = 572,774,346.09/21,932.88
  6. Step 6: Final answer
    x = 26,114.87

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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.