Home / 19,321.56-28,944.36-10,976.58

Finding the Fourth Proportional to 19,321.56, 28,944.36 and 10,976.58

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Solution

The fourth proportional to 19,321.56, 28,944.36 and 10,976.58 is: 16,443.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.56 : 28,944.36 = 10,976.58 : x
  2. Step 2: Convert to fraction form
    19,321.56/28,944.36 = 10,976.58/x
  3. Step 3: Cross multiply
    19,321.56x = 28,944.36 × 10,976.58
  4. Step 4: Simplify right side
    19,321.56x = 317,710,083.09
  5. Step 5: Solve for x
    x = 317,710,083.09/19,321.56
  6. Step 6: Final answer
    x = 16,443.29

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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.