Home / 28,285.77-39,025.56-16,344.75

Finding the Fourth Proportional to 28,285.77, 39,025.56 and 16,344.75

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Solution

The fourth proportional to 28,285.77, 39,025.56 and 16,344.75 is: 22,550.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,285.77 : 39,025.56 = 16,344.75 : x
  2. Step 2: Convert to fraction form
    28,285.77/39,025.56 = 16,344.75/x
  3. Step 3: Cross multiply
    28,285.77x = 39,025.56 × 16,344.75
  4. Step 4: Simplify right side
    28,285.77x = 637,863,021.81
  5. Step 5: Solve for x
    x = 637,863,021.81/28,285.77
  6. Step 6: Final answer
    x = 22,550.67

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Half scale
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Double scale
Find fourth proportional to 28,286.77, 39,026.94 and 16,345.75
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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.