Home / 38,736.36-53,455.68-21,740.54

Finding the Fourth Proportional to 38,736.36, 53,455.68 and 21,740.54

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Solution

The fourth proportional to 38,736.36, 53,455.68 and 21,740.54 is: 30,001.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,736.36 : 53,455.68 = 21,740.54 : x
  2. Step 2: Convert to fraction form
    38,736.36/53,455.68 = 21,740.54/x
  3. Step 3: Cross multiply
    38,736.36x = 53,455.68 × 21,740.54
  4. Step 4: Simplify right side
    38,736.36x = 1,162,155,081.99
  5. Step 5: Solve for x
    x = 1,162,155,081.99/38,736.36
  6. Step 6: Final answer
    x = 30,001.66

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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.