Home / 38,656.60-57,984.12-12,361.33

Finding the Fourth Proportional to 38,656.60, 57,984.12 and 12,361.33

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Solution

The fourth proportional to 38,656.60, 57,984.12 and 12,361.33 is: 18,541.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,656.60 : 57,984.12 = 12,361.33 : x
  2. Step 2: Convert to fraction form
    38,656.60/57,984.12 = 12,361.33/x
  3. Step 3: Cross multiply
    38,656.60x = 57,984.12 × 12,361.33
  4. Step 4: Simplify right side
    38,656.60x = 716,760,914.56
  5. Step 5: Solve for x
    x = 716,760,914.56/38,656.60
  6. Step 6: Final answer
    x = 18,541.75

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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.