Home / 28,640.32-39,523.61-16,065.08

Finding the Fourth Proportional to 28,640.32, 39,523.61 and 16,065.08

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Solution

The fourth proportional to 28,640.32, 39,523.61 and 16,065.08 is: 22,169.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,640.32 : 39,523.61 = 16,065.08 : x
  2. Step 2: Convert to fraction form
    28,640.32/39,523.61 = 16,065.08/x
  3. Step 3: Cross multiply
    28,640.32x = 39,523.61 × 16,065.08
  4. Step 4: Simplify right side
    28,640.32x = 634,949,956.54
  5. Step 5: Solve for x
    x = 634,949,956.54/28,640.32
  6. Step 6: Final answer
    x = 22,169.79

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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.