Home / 31,749.06-43,815.69-18,322.77

Finding the Fourth Proportional to 31,749.06, 43,815.69 and 18,322.77

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Solution

The fourth proportional to 31,749.06, 43,815.69 and 18,322.77 is: 25,286.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,749.06 : 43,815.69 = 18,322.77 : x
  2. Step 2: Convert to fraction form
    31,749.06/43,815.69 = 18,322.77/x
  3. Step 3: Cross multiply
    31,749.06x = 43,815.69 × 18,322.77
  4. Step 4: Simplify right side
    31,749.06x = 802,824,810.26
  5. Step 5: Solve for x
    x = 802,824,810.26/31,749.06
  6. Step 6: Final answer
    x = 25,286.57

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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.