Home / 28,127.25-38,816.21-16,188.66

Finding the Fourth Proportional to 28,127.25, 38,816.21 and 16,188.66

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Solution

The fourth proportional to 28,127.25, 38,816.21 and 16,188.66 is: 22,340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.25 : 38,816.21 = 16,188.66 : x
  2. Step 2: Convert to fraction form
    28,127.25/38,816.21 = 16,188.66/x
  3. Step 3: Cross multiply
    28,127.25x = 38,816.21 × 16,188.66
  4. Step 4: Simplify right side
    28,127.25x = 628,382,466.65
  5. Step 5: Solve for x
    x = 628,382,466.65/28,127.25
  6. Step 6: Final answer
    x = 22,340.70

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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.