Home / 31,739.24-43,809.80-18,319.25

Finding the Fourth Proportional to 31,739.24, 43,809.80 and 18,319.25

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Solution

The fourth proportional to 31,739.24, 43,809.80 and 18,319.25 is: 25,286.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.24 : 43,809.80 = 18,319.25 : x
  2. Step 2: Convert to fraction form
    31,739.24/43,809.80 = 18,319.25/x
  3. Step 3: Cross multiply
    31,739.24x = 43,809.80 × 18,319.25
  4. Step 4: Simplify right side
    31,739.24x = 802,562,696.58
  5. Step 5: Solve for x
    x = 802,562,696.58/31,739.24
  6. Step 6: Final answer
    x = 25,286.13

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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.