Home / 28,176.69-38,883.83-15,601.44

Finding the Fourth Proportional to 28,176.69, 38,883.83 and 15,601.44

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Solution

The fourth proportional to 28,176.69, 38,883.83 and 15,601.44 is: 21,529.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.69 : 38,883.83 = 15,601.44 : x
  2. Step 2: Convert to fraction form
    28,176.69/38,883.83 = 15,601.44/x
  3. Step 3: Cross multiply
    28,176.69x = 38,883.83 × 15,601.44
  4. Step 4: Simplify right side
    28,176.69x = 606,643,740.72
  5. Step 5: Solve for x
    x = 606,643,740.72/28,176.69
  6. Step 6: Final answer
    x = 21,529.99

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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.