Home / 28,576.99-39,441.05-16,647.40

Finding the Fourth Proportional to 28,576.99, 39,441.05 and 16,647.40

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Solution

The fourth proportional to 28,576.99, 39,441.05 and 16,647.40 is: 22,976.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,576.99 : 39,441.05 = 16,647.40 : x
  2. Step 2: Convert to fraction form
    28,576.99/39,441.05 = 16,647.40/x
  3. Step 3: Cross multiply
    28,576.99x = 39,441.05 × 16,647.40
  4. Step 4: Simplify right side
    28,576.99x = 656,590,935.77
  5. Step 5: Solve for x
    x = 656,590,935.77/28,576.99
  6. Step 6: Final answer
    x = 22,976.21

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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.