Home / 28,776.49-43,146.27-19,866.85

Finding the Fourth Proportional to 28,776.49, 43,146.27 and 19,866.85

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Solution

The fourth proportional to 28,776.49, 43,146.27 and 19,866.85 is: 29,787.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.49 : 43,146.27 = 19,866.85 : x
  2. Step 2: Convert to fraction form
    28,776.49/43,146.27 = 19,866.85/x
  3. Step 3: Cross multiply
    28,776.49x = 43,146.27 × 19,866.85
  4. Step 4: Simplify right side
    28,776.49x = 857,180,474.15
  5. Step 5: Solve for x
    x = 857,180,474.15/28,776.49
  6. Step 6: Final answer
    x = 29,787.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.