Home / 30,290.39-41,821.31-18,964.46

Finding the Fourth Proportional to 30,290.39, 41,821.31 and 18,964.46

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Solution

The fourth proportional to 30,290.39, 41,821.31 and 18,964.46 is: 26,183.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,290.39 : 41,821.31 = 18,964.46 : x
  2. Step 2: Convert to fraction form
    30,290.39/41,821.31 = 18,964.46/x
  3. Step 3: Cross multiply
    30,290.39x = 41,821.31 × 18,964.46
  4. Step 4: Simplify right side
    30,290.39x = 793,118,712.61
  5. Step 5: Solve for x
    x = 793,118,712.61/30,290.39
  6. Step 6: Final answer
    x = 26,183.84

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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.