Home / 28,768.84-39,695.70-16,190.92

Finding the Fourth Proportional to 28,768.84, 39,695.70 and 16,190.92

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Solution

The fourth proportional to 28,768.84, 39,695.70 and 16,190.92 is: 22,340.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.84 : 39,695.70 = 16,190.92 : x
  2. Step 2: Convert to fraction form
    28,768.84/39,695.70 = 16,190.92/x
  3. Step 3: Cross multiply
    28,768.84x = 39,695.70 × 16,190.92
  4. Step 4: Simplify right side
    28,768.84x = 642,709,903.04
  5. Step 5: Solve for x
    x = 642,709,903.04/28,768.84
  6. Step 6: Final answer
    x = 22,340.49

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Double scale
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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.