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Finding the Fourth Proportional to 28,903.04, 43,357.44 and 7,843.42

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Solution

The fourth proportional to 28,903.04, 43,357.44 and 7,843.42 is: 11,765.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.04 : 43,357.44 = 7,843.42 : x
  2. Step 2: Convert to fraction form
    28,903.04/43,357.44 = 7,843.42/x
  3. Step 3: Cross multiply
    28,903.04x = 43,357.44 × 7,843.42
  4. Step 4: Simplify right side
    28,903.04x = 340,070,695.65
  5. Step 5: Solve for x
    x = 340,070,695.65/28,903.04
  6. Step 6: Final answer
    x = 11,765.91

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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.