Home / 23,420.98-35,145.30-8,640.22

Finding the Fourth Proportional to 23,420.98, 35,145.30 and 8,640.22

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Solution

The fourth proportional to 23,420.98, 35,145.30 and 8,640.22 is: 12,965.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,420.98 : 35,145.30 = 8,640.22 : x
  2. Step 2: Convert to fraction form
    23,420.98/35,145.30 = 8,640.22/x
  3. Step 3: Cross multiply
    23,420.98x = 35,145.30 × 8,640.22
  4. Step 4: Simplify right side
    23,420.98x = 303,663,123.97
  5. Step 5: Solve for x
    x = 303,663,123.97/23,420.98
  6. Step 6: Final answer
    x = 12,965.43

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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.