Home / 28,133.20-38,828.59-16,203.44

Finding the Fourth Proportional to 28,133.20, 38,828.59 and 16,203.44

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Solution

The fourth proportional to 28,133.20, 38,828.59 and 16,203.44 is: 22,363.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.20 : 38,828.59 = 16,203.44 : x
  2. Step 2: Convert to fraction form
    28,133.20/38,828.59 = 16,203.44/x
  3. Step 3: Cross multiply
    28,133.20x = 38,828.59 × 16,203.44
  4. Step 4: Simplify right side
    28,133.20x = 629,156,728.35
  5. Step 5: Solve for x
    x = 629,156,728.35/28,133.20
  6. Step 6: Final answer
    x = 22,363.50

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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.