Home / 19,922.76-29,887.41-8,077.32

Finding the Fourth Proportional to 19,922.76, 29,887.41 and 8,077.32

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Solution

The fourth proportional to 19,922.76, 29,887.41 and 8,077.32 is: 12,117.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,922.76 : 29,887.41 = 8,077.32 : x
  2. Step 2: Convert to fraction form
    19,922.76/29,887.41 = 8,077.32/x
  3. Step 3: Cross multiply
    19,922.76x = 29,887.41 × 8,077.32
  4. Step 4: Simplify right side
    19,922.76x = 241,410,174.54
  5. Step 5: Solve for x
    x = 241,410,174.54/19,922.76
  6. Step 6: Final answer
    x = 12,117.31

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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.