Home / 38,635.44-53,317.08-21,871.68

Finding the Fourth Proportional to 38,635.44, 53,317.08 and 21,871.68

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Solution

The fourth proportional to 38,635.44, 53,317.08 and 21,871.68 is: 30,183.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,635.44 : 53,317.08 = 21,871.68 : x
  2. Step 2: Convert to fraction form
    38,635.44/53,317.08 = 21,871.68/x
  3. Step 3: Cross multiply
    38,635.44x = 53,317.08 × 21,871.68
  4. Step 4: Simplify right side
    38,635.44x = 1,166,134,112.29
  5. Step 5: Solve for x
    x = 1,166,134,112.29/38,635.44
  6. Step 6: Final answer
    x = 30,183.02

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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.