Home / 30,365.83-41,887.31-18,257.90

Finding the Fourth Proportional to 30,365.83, 41,887.31 and 18,257.90

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Solution

The fourth proportional to 30,365.83, 41,887.31 and 18,257.90 is: 25,185.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,365.83 : 41,887.31 = 18,257.90 : x
  2. Step 2: Convert to fraction form
    30,365.83/41,887.31 = 18,257.90/x
  3. Step 3: Cross multiply
    30,365.83x = 41,887.31 × 18,257.90
  4. Step 4: Simplify right side
    30,365.83x = 764,774,471.23
  5. Step 5: Solve for x
    x = 764,774,471.23/30,365.83
  6. Step 6: Final answer
    x = 25,185.36

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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.