Home / 28,135.76-38,826.08-16,196.56

Finding the Fourth Proportional to 28,135.76, 38,826.08 and 16,196.56

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Solution

The fourth proportional to 28,135.76, 38,826.08 and 16,196.56 is: 22,350.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.76 : 38,826.08 = 16,196.56 : x
  2. Step 2: Convert to fraction form
    28,135.76/38,826.08 = 16,196.56/x
  3. Step 3: Cross multiply
    28,135.76x = 38,826.08 × 16,196.56
  4. Step 4: Simplify right side
    28,135.76x = 628,848,908.08
  5. Step 5: Solve for x
    x = 628,848,908.08/28,135.76
  6. Step 6: Final answer
    x = 22,350.53

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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.