Home / 31,291.98-43,202.88-27,928.86

Finding the Fourth Proportional to 31,291.98, 43,202.88 and 27,928.86

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Solution

The fourth proportional to 31,291.98, 43,202.88 and 27,928.86 is: 38,559.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,291.98 : 43,202.88 = 27,928.86 : x
  2. Step 2: Convert to fraction form
    31,291.98/43,202.88 = 27,928.86/x
  3. Step 3: Cross multiply
    31,291.98x = 43,202.88 × 27,928.86
  4. Step 4: Simplify right side
    31,291.98x = 1,206,607,187.12
  5. Step 5: Solve for x
    x = 1,206,607,187.12/31,291.98
  6. Step 6: Final answer
    x = 38,559.63

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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.