Home / 28,583.19-39,441.21-15,834.60

Finding the Fourth Proportional to 28,583.19, 39,441.21 and 15,834.60

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Solution

The fourth proportional to 28,583.19, 39,441.21 and 15,834.60 is: 21,849.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,583.19 : 39,441.21 = 15,834.60 : x
  2. Step 2: Convert to fraction form
    28,583.19/39,441.21 = 15,834.60/x
  3. Step 3: Cross multiply
    28,583.19x = 39,441.21 × 15,834.60
  4. Step 4: Simplify right side
    28,583.19x = 624,535,783.87
  5. Step 5: Solve for x
    x = 624,535,783.87/28,583.19
  6. Step 6: Final answer
    x = 21,849.76

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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.