Home / 28,968.48-39,994.56-19,909.44

Finding the Fourth Proportional to 28,968.48, 39,994.56 and 19,909.44

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Solution

The fourth proportional to 28,968.48, 39,994.56 and 19,909.44 is: 27,487.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,968.48 : 39,994.56 = 19,909.44 : x
  2. Step 2: Convert to fraction form
    28,968.48/39,994.56 = 19,909.44/x
  3. Step 3: Cross multiply
    28,968.48x = 39,994.56 × 19,909.44
  4. Step 4: Simplify right side
    28,968.48x = 796,269,292.65
  5. Step 5: Solve for x
    x = 796,269,292.65/28,968.48
  6. Step 6: Final answer
    x = 27,487.44

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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.