Home / 22,272.08-30,735.48-12,840.56

Finding the Fourth Proportional to 22,272.08, 30,735.48 and 12,840.56

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Solution

The fourth proportional to 22,272.08, 30,735.48 and 12,840.56 is: 17,719.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,272.08 : 30,735.48 = 12,840.56 : x
  2. Step 2: Convert to fraction form
    22,272.08/30,735.48 = 12,840.56/x
  3. Step 3: Cross multiply
    22,272.08x = 30,735.48 × 12,840.56
  4. Step 4: Simplify right side
    22,272.08x = 394,660,775.07
  5. Step 5: Solve for x
    x = 394,660,775.07/22,272.08
  6. Step 6: Final answer
    x = 17,719.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.