Home / 19,387.87-29,024.40-11,968.47

Finding the Fourth Proportional to 19,387.87, 29,024.40 and 11,968.47

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Solution

The fourth proportional to 19,387.87, 29,024.40 and 11,968.47 is: 17,917.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,387.87 : 29,024.40 = 11,968.47 : x
  2. Step 2: Convert to fraction form
    19,387.87/29,024.40 = 11,968.47/x
  3. Step 3: Cross multiply
    19,387.87x = 29,024.40 × 11,968.47
  4. Step 4: Simplify right side
    19,387.87x = 347,377,673.39
  5. Step 5: Solve for x
    x = 347,377,673.39/19,387.87
  6. Step 6: Final answer
    x = 17,917.27

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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.