Home / 19,102.46-28,644.30-11,220.32

Finding the Fourth Proportional to 19,102.46, 28,644.30 and 11,220.32

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Solution

The fourth proportional to 19,102.46, 28,644.30 and 11,220.32 is: 16,824.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,102.46 : 28,644.30 = 11,220.32 : x
  2. Step 2: Convert to fraction form
    19,102.46/28,644.30 = 11,220.32/x
  3. Step 3: Cross multiply
    19,102.46x = 28,644.30 × 11,220.32
  4. Step 4: Simplify right side
    19,102.46x = 321,398,212.18
  5. Step 5: Solve for x
    x = 321,398,212.18/19,102.46
  6. Step 6: Final answer
    x = 16,824.96

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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.