Home / 30,339.84-41,842.80-19,725.60

Finding the Fourth Proportional to 30,339.84, 41,842.80 and 19,725.60

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Solution

The fourth proportional to 30,339.84, 41,842.80 and 19,725.60 is: 27,204.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,339.84 : 41,842.80 = 19,725.60 : x
  2. Step 2: Convert to fraction form
    30,339.84/41,842.80 = 19,725.60/x
  3. Step 3: Cross multiply
    30,339.84x = 41,842.80 × 19,725.60
  4. Step 4: Simplify right side
    30,339.84x = 825,374,335.68
  5. Step 5: Solve for x
    x = 825,374,335.68/30,339.84
  6. Step 6: Final answer
    x = 27,204.31

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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.