Home / 31,986-47,982.96-10,928.16

Finding the Fourth Proportional to 31,986, 47,982.96 and 10,928.16

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Solution

The fourth proportional to 31,986, 47,982.96 and 10,928.16 is: 16,393.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,986 : 47,982.96 = 10,928.16 : x
  2. Step 2: Convert to fraction form
    31,986/47,982.96 = 10,928.16/x
  3. Step 3: Cross multiply
    31,986x = 47,982.96 × 10,928.16
  4. Step 4: Simplify right side
    31,986x = 524,365,464.15
  5. Step 5: Solve for x
    x = 524,365,464.15/31,986
  6. Step 6: Final answer
    x = 16,393.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.