Home / 28,393.50-39,156.46-22,439.40

Finding the Fourth Proportional to 28,393.50, 39,156.46 and 22,439.40

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Solution

The fourth proportional to 28,393.50, 39,156.46 and 22,439.40 is: 30,945.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,393.50 : 39,156.46 = 22,439.40 : x
  2. Step 2: Convert to fraction form
    28,393.50/39,156.46 = 22,439.40/x
  3. Step 3: Cross multiply
    28,393.50x = 39,156.46 × 22,439.40
  4. Step 4: Simplify right side
    28,393.50x = 878,647,265.59
  5. Step 5: Solve for x
    x = 878,647,265.59/28,393.50
  6. Step 6: Final answer
    x = 30,945.36

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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.