Home / 38,181.70-57,289.74-20,630.98

Finding the Fourth Proportional to 38,181.70, 57,289.74 and 20,630.98

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Solution

The fourth proportional to 38,181.70, 57,289.74 and 20,630.98 is: 30,955.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,181.70 : 57,289.74 = 20,630.98 : x
  2. Step 2: Convert to fraction form
    38,181.70/57,289.74 = 20,630.98/x
  3. Step 3: Cross multiply
    38,181.70x = 57,289.74 × 20,630.98
  4. Step 4: Simplify right side
    38,181.70x = 1,181,943,480.15
  5. Step 5: Solve for x
    x = 1,181,943,480.15/38,181.70
  6. Step 6: Final answer
    x = 30,955.76

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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.