Home / 30,268.44-41,776.20-18,943.20

Finding the Fourth Proportional to 30,268.44, 41,776.20 and 18,943.20

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Solution

The fourth proportional to 30,268.44, 41,776.20 and 18,943.20 is: 26,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,268.44 : 41,776.20 = 18,943.20 : x
  2. Step 2: Convert to fraction form
    30,268.44/41,776.20 = 18,943.20/x
  3. Step 3: Cross multiply
    30,268.44x = 41,776.20 × 18,943.20
  4. Step 4: Simplify right side
    30,268.44x = 791,374,911.84
  5. Step 5: Solve for x
    x = 791,374,911.84/30,268.44
  6. Step 6: Final answer
    x = 26,145.22

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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.