Home / 30,261.40-41,761.92-18,317.98

Finding the Fourth Proportional to 30,261.40, 41,761.92 and 18,317.98

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Solution

The fourth proportional to 30,261.40, 41,761.92 and 18,317.98 is: 25,279.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,261.40 : 41,761.92 = 18,317.98 : x
  2. Step 2: Convert to fraction form
    30,261.40/41,761.92 = 18,317.98/x
  3. Step 3: Cross multiply
    30,261.40x = 41,761.92 × 18,317.98
  4. Step 4: Simplify right side
    30,261.40x = 764,994,015.32
  5. Step 5: Solve for x
    x = 764,994,015.32/30,261.40
  6. Step 6: Final answer
    x = 25,279.53

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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.