Home / 19,228.50-28,843.83-5,378.58

Finding the Fourth Proportional to 19,228.50, 28,843.83 and 5,378.58

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Solution

The fourth proportional to 19,228.50, 28,843.83 and 5,378.58 is: 8,068.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.50 : 28,843.83 = 5,378.58 : x
  2. Step 2: Convert to fraction form
    19,228.50/28,843.83 = 5,378.58/x
  3. Step 3: Cross multiply
    19,228.50x = 28,843.83 × 5,378.58
  4. Step 4: Simplify right side
    19,228.50x = 155,138,847.16
  5. Step 5: Solve for x
    x = 155,138,847.16/19,228.50
  6. Step 6: Final answer
    x = 8,068.17

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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.