Home / 28,011.50-38,653.49-16,074.59

Finding the Fourth Proportional to 28,011.50, 38,653.49 and 16,074.59

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Solution

The fourth proportional to 28,011.50, 38,653.49 and 16,074.59 is: 22,181.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011.50 : 38,653.49 = 16,074.59 : x
  2. Step 2: Convert to fraction form
    28,011.50/38,653.49 = 16,074.59/x
  3. Step 3: Cross multiply
    28,011.50x = 38,653.49 × 16,074.59
  4. Step 4: Simplify right side
    28,011.50x = 621,338,850.74
  5. Step 5: Solve for x
    x = 621,338,850.74/28,011.50
  6. Step 6: Final answer
    x = 22,181.56

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Half scale
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Double scale
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Similar ratio
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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.