Home / 40,422.44-55,379-38,907.33

Finding the Fourth Proportional to 40,422.44, 55,379 and 38,907.33

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Solution

The fourth proportional to 40,422.44, 55,379 and 38,907.33 is: 53,303.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,422.44 : 55,379 = 38,907.33 : x
  2. Step 2: Convert to fraction form
    40,422.44/55,379 = 38,907.33/x
  3. Step 3: Cross multiply
    40,422.44x = 55,379 × 38,907.33
  4. Step 4: Simplify right side
    40,422.44x = 2,154,648,751.18
  5. Step 5: Solve for x
    x = 2,154,648,751.18/40,422.44
  6. Step 6: Final answer
    x = 53,303.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.