Home / 28,043.66-38,697.44-16,556.78

Finding the Fourth Proportional to 28,043.66, 38,697.44 and 16,556.78

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Solution

The fourth proportional to 28,043.66, 38,697.44 and 16,556.78 is: 22,846.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.66 : 38,697.44 = 16,556.78 : x
  2. Step 2: Convert to fraction form
    28,043.66/38,697.44 = 16,556.78/x
  3. Step 3: Cross multiply
    28,043.66x = 38,697.44 × 16,556.78
  4. Step 4: Simplify right side
    28,043.66x = 640,705,000.64
  5. Step 5: Solve for x
    x = 640,705,000.64/28,043.66
  6. Step 6: Final answer
    x = 22,846.70

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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.