Home / 21,360.44-31,977.56-15,776.70

Finding the Fourth Proportional to 21,360.44, 31,977.56 and 15,776.70

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Solution

The fourth proportional to 21,360.44, 31,977.56 and 15,776.70 is: 23,618.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,360.44 : 31,977.56 = 15,776.70 : x
  2. Step 2: Convert to fraction form
    21,360.44/31,977.56 = 15,776.70/x
  3. Step 3: Cross multiply
    21,360.44x = 31,977.56 × 15,776.70
  4. Step 4: Simplify right side
    21,360.44x = 504,500,370.85
  5. Step 5: Solve for x
    x = 504,500,370.85/21,360.44
  6. Step 6: Final answer
    x = 23,618.44

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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.