Home / 30,345.39-41,883.35-19,716.57

Finding the Fourth Proportional to 30,345.39, 41,883.35 and 19,716.57

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Solution

The fourth proportional to 30,345.39, 41,883.35 and 19,716.57 is: 27,213.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,345.39 : 41,883.35 = 19,716.57 : x
  2. Step 2: Convert to fraction form
    30,345.39/41,883.35 = 19,716.57/x
  3. Step 3: Cross multiply
    30,345.39x = 41,883.35 × 19,716.57
  4. Step 4: Simplify right side
    30,345.39x = 825,795,903.53
  5. Step 5: Solve for x
    x = 825,795,903.53/30,345.39
  6. Step 6: Final answer
    x = 27,213.22

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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.