Home / 15,942.88-23,912.70-4,257.28

Finding the Fourth Proportional to 15,942.88, 23,912.70 and 4,257.28

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Solution

The fourth proportional to 15,942.88, 23,912.70 and 4,257.28 is: 6,385.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,942.88 : 23,912.70 = 4,257.28 : x
  2. Step 2: Convert to fraction form
    15,942.88/23,912.70 = 4,257.28/x
  3. Step 3: Cross multiply
    15,942.88x = 23,912.70 × 4,257.28
  4. Step 4: Simplify right side
    15,942.88x = 101,803,059.46
  5. Step 5: Solve for x
    x = 101,803,059.46/15,942.88
  6. Step 6: Final answer
    x = 6,385.49

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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.