Home / 38,142.80-57,214.73-11,845.88

Finding the Fourth Proportional to 38,142.80, 57,214.73 and 11,845.88

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Solution

The fourth proportional to 38,142.80, 57,214.73 and 11,845.88 is: 17,768.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,142.80 : 57,214.73 = 11,845.88 : x
  2. Step 2: Convert to fraction form
    38,142.80/57,214.73 = 11,845.88/x
  3. Step 3: Cross multiply
    38,142.80x = 57,214.73 × 11,845.88
  4. Step 4: Simplify right side
    38,142.80x = 677,758,825.81
  5. Step 5: Solve for x
    x = 677,758,825.81/38,142.80
  6. Step 6: Final answer
    x = 17,768.98

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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.