Home / 38,278.02-57,427.06-11,982.98

Finding the Fourth Proportional to 38,278.02, 57,427.06 and 11,982.98

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Solution

The fourth proportional to 38,278.02, 57,427.06 and 11,982.98 is: 17,977.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,278.02 : 57,427.06 = 11,982.98 : x
  2. Step 2: Convert to fraction form
    38,278.02/57,427.06 = 11,982.98/x
  3. Step 3: Cross multiply
    38,278.02x = 57,427.06 × 11,982.98
  4. Step 4: Simplify right side
    38,278.02x = 688,147,311.44
  5. Step 5: Solve for x
    x = 688,147,311.44/38,278.02
  6. Step 6: Final answer
    x = 17,977.61

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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.