Home / 19,921.67-29,887.70-7,441.80

Finding the Fourth Proportional to 19,921.67, 29,887.70 and 7,441.80

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Solution

The fourth proportional to 19,921.67, 29,887.70 and 7,441.80 is: 11,164.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.67 : 29,887.70 = 7,441.80 : x
  2. Step 2: Convert to fraction form
    19,921.67/29,887.70 = 7,441.80/x
  3. Step 3: Cross multiply
    19,921.67x = 29,887.70 × 7,441.80
  4. Step 4: Simplify right side
    19,921.67x = 222,418,285.86
  5. Step 5: Solve for x
    x = 222,418,285.86/19,921.67
  6. Step 6: Final answer
    x = 11,164.64

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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.