Home / 31,197.33-43,054.07-20,579.45

Finding the Fourth Proportional to 31,197.33, 43,054.07 and 20,579.45

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Solution

The fourth proportional to 31,197.33, 43,054.07 and 20,579.45 is: 28,400.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,197.33 : 43,054.07 = 20,579.45 : x
  2. Step 2: Convert to fraction form
    31,197.33/43,054.07 = 20,579.45/x
  3. Step 3: Cross multiply
    31,197.33x = 43,054.07 × 20,579.45
  4. Step 4: Simplify right side
    31,197.33x = 886,028,762.69
  5. Step 5: Solve for x
    x = 886,028,762.69/31,197.33
  6. Step 6: Final answer
    x = 28,400.79

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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.