Home / 38,550.54-53,200.86-21,554.30

Finding the Fourth Proportional to 38,550.54, 53,200.86 and 21,554.30

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Solution

The fourth proportional to 38,550.54, 53,200.86 and 21,554.30 is: 29,745.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,550.54 : 53,200.86 = 21,554.30 : x
  2. Step 2: Convert to fraction form
    38,550.54/53,200.86 = 21,554.30/x
  3. Step 3: Cross multiply
    38,550.54x = 53,200.86 × 21,554.30
  4. Step 4: Simplify right side
    38,550.54x = 1,146,707,296.70
  5. Step 5: Solve for x
    x = 1,146,707,296.70/38,550.54
  6. Step 6: Final answer
    x = 29,745.56

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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.