Home / 28,176.21-38,883.17-15,600.96

Finding the Fourth Proportional to 28,176.21, 38,883.17 and 15,600.96

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Solution

The fourth proportional to 28,176.21, 38,883.17 and 15,600.96 is: 21,529.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.21 : 38,883.17 = 15,600.96 : x
  2. Step 2: Convert to fraction form
    28,176.21/38,883.17 = 15,600.96/x
  3. Step 3: Cross multiply
    28,176.21x = 38,883.17 × 15,600.96
  4. Step 4: Simplify right side
    28,176.21x = 606,614,818.85
  5. Step 5: Solve for x
    x = 606,614,818.85/28,176.21
  6. Step 6: Final answer
    x = 21,529.33

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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.