Home / 40,067.02-55,290.81-21,917.45

Finding the Fourth Proportional to 40,067.02, 55,290.81 and 21,917.45

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Solution

The fourth proportional to 40,067.02, 55,290.81 and 21,917.45 is: 30,245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,067.02 : 55,290.81 = 21,917.45 : x
  2. Step 2: Convert to fraction form
    40,067.02/55,290.81 = 21,917.45/x
  3. Step 3: Cross multiply
    40,067.02x = 55,290.81 × 21,917.45
  4. Step 4: Simplify right side
    40,067.02x = 1,211,833,563.63
  5. Step 5: Solve for x
    x = 1,211,833,563.63/40,067.02
  6. Step 6: Final answer
    x = 30,245.16

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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.