Home / 38,164.32-57,262.96-20,646.48

Finding the Fourth Proportional to 38,164.32, 57,262.96 and 20,646.48

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Solution

The fourth proportional to 38,164.32, 57,262.96 and 20,646.48 is: 30,978.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,164.32 : 57,262.96 = 20,646.48 : x
  2. Step 2: Convert to fraction form
    38,164.32/57,262.96 = 20,646.48/x
  3. Step 3: Cross multiply
    38,164.32x = 57,262.96 × 20,646.48
  4. Step 4: Simplify right side
    38,164.32x = 1,182,278,558.38
  5. Step 5: Solve for x
    x = 1,182,278,558.38/38,164.32
  6. Step 6: Final answer
    x = 30,978.64

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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.