Home / 28,761.32-39,690.54-16,186.08

Finding the Fourth Proportional to 28,761.32, 39,690.54 and 16,186.08

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Solution

The fourth proportional to 28,761.32, 39,690.54 and 16,186.08 is: 22,336.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,761.32 : 39,690.54 = 16,186.08 : x
  2. Step 2: Convert to fraction form
    28,761.32/39,690.54 = 16,186.08/x
  3. Step 3: Cross multiply
    28,761.32x = 39,690.54 × 16,186.08
  4. Step 4: Simplify right side
    28,761.32x = 642,434,255.68
  5. Step 5: Solve for x
    x = 642,434,255.68/28,761.32
  6. Step 6: Final answer
    x = 22,336.74

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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.