Home / 31,443.37-43,379.27-20,110.25

Finding the Fourth Proportional to 31,443.37, 43,379.27 and 20,110.25

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Solution

The fourth proportional to 31,443.37, 43,379.27 and 20,110.25 is: 27,744.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,443.37 : 43,379.27 = 20,110.25 : x
  2. Step 2: Convert to fraction form
    31,443.37/43,379.27 = 20,110.25/x
  3. Step 3: Cross multiply
    31,443.37x = 43,379.27 × 20,110.25
  4. Step 4: Simplify right side
    31,443.37x = 872,367,964.52
  5. Step 5: Solve for x
    x = 872,367,964.52/31,443.37
  6. Step 6: Final answer
    x = 27,744.10

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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.