Home / 31,356.22-43,268.69-18,607.19

Finding the Fourth Proportional to 31,356.22, 43,268.69 and 18,607.19

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Solution

The fourth proportional to 31,356.22, 43,268.69 and 18,607.19 is: 25,676.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,356.22 : 43,268.69 = 18,607.19 : x
  2. Step 2: Convert to fraction form
    31,356.22/43,268.69 = 18,607.19/x
  3. Step 3: Cross multiply
    31,356.22x = 43,268.69 × 18,607.19
  4. Step 4: Simplify right side
    31,356.22x = 805,108,735.88
  5. Step 5: Solve for x
    x = 805,108,735.88/31,356.22
  6. Step 6: Final answer
    x = 25,676.21

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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.