Home / 38,734.09-53,455.39-21,739.75

Finding the Fourth Proportional to 38,734.09, 53,455.39 and 21,739.75

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Solution

The fourth proportional to 38,734.09, 53,455.39 and 21,739.75 is: 30,002.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,734.09 : 53,455.39 = 21,739.75 : x
  2. Step 2: Convert to fraction form
    38,734.09/53,455.39 = 21,739.75/x
  3. Step 3: Cross multiply
    38,734.09x = 53,455.39 × 21,739.75
  4. Step 4: Simplify right side
    38,734.09x = 1,162,106,626.76
  5. Step 5: Solve for x
    x = 1,162,106,626.76/38,734.09
  6. Step 6: Final answer
    x = 30,002.17

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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.