Home / 31,119.44-42,944.36-16,972.26

Finding the Fourth Proportional to 31,119.44, 42,944.36 and 16,972.26

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Solution

The fourth proportional to 31,119.44, 42,944.36 and 16,972.26 is: 23,421.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,119.44 : 42,944.36 = 16,972.26 : x
  2. Step 2: Convert to fraction form
    31,119.44/42,944.36 = 16,972.26/x
  3. Step 3: Cross multiply
    31,119.44x = 42,944.36 × 16,972.26
  4. Step 4: Simplify right side
    31,119.44x = 728,862,843.45
  5. Step 5: Solve for x
    x = 728,862,843.45/31,119.44
  6. Step 6: Final answer
    x = 23,421.46

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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.