Home / 28,712.01-39,626.25-16,136.76

Finding the Fourth Proportional to 28,712.01, 39,626.25 and 16,136.76

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Solution

The fourth proportional to 28,712.01, 39,626.25 and 16,136.76 is: 22,270.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,712.01 : 39,626.25 = 16,136.76 : x
  2. Step 2: Convert to fraction form
    28,712.01/39,626.25 = 16,136.76/x
  3. Step 3: Cross multiply
    28,712.01x = 39,626.25 × 16,136.76
  4. Step 4: Simplify right side
    28,712.01x = 639,439,285.95
  5. Step 5: Solve for x
    x = 639,439,285.95/28,712.01
  6. Step 6: Final answer
    x = 22,270.79

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Half scale
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Double scale
Find fourth proportional to 28,713.01, 39,627.63 and 16,137.76
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.