Home / 38,557.40-57,749.70-20,067.80

Finding the Fourth Proportional to 38,557.40, 57,749.70 and 20,067.80

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Solution

The fourth proportional to 38,557.40, 57,749.70 and 20,067.80 is: 30,056.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,557.40 : 57,749.70 = 20,067.80 : x
  2. Step 2: Convert to fraction form
    38,557.40/57,749.70 = 20,067.80/x
  3. Step 3: Cross multiply
    38,557.40x = 57,749.70 × 20,067.80
  4. Step 4: Simplify right side
    38,557.40x = 1,158,909,429.66
  5. Step 5: Solve for x
    x = 1,158,909,429.66/38,557.40
  6. Step 6: Final answer
    x = 30,056.73

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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.