Home / 22,958.40-34,364.70-21,208.80

Finding the Fourth Proportional to 22,958.40, 34,364.70 and 21,208.80

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Solution

The fourth proportional to 22,958.40, 34,364.70 and 21,208.80 is: 31,745.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,958.40 : 34,364.70 = 21,208.80 : x
  2. Step 2: Convert to fraction form
    22,958.40/34,364.70 = 21,208.80/x
  3. Step 3: Cross multiply
    22,958.40x = 34,364.70 × 21,208.80
  4. Step 4: Simplify right side
    22,958.40x = 728,834,049.36
  5. Step 5: Solve for x
    x = 728,834,049.36/22,958.40
  6. Step 6: Final answer
    x = 31,745.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.