Home / 39,907.45-55,072.65-22,003.12

Finding the Fourth Proportional to 39,907.45, 55,072.65 and 22,003.12

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Solution

The fourth proportional to 39,907.45, 55,072.65 and 22,003.12 is: 30,364.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,907.45 : 55,072.65 = 22,003.12 : x
  2. Step 2: Convert to fraction form
    39,907.45/55,072.65 = 22,003.12/x
  3. Step 3: Cross multiply
    39,907.45x = 55,072.65 × 22,003.12
  4. Step 4: Simplify right side
    39,907.45x = 1,211,770,126.67
  5. Step 5: Solve for x
    x = 1,211,770,126.67/39,907.45
  6. Step 6: Final answer
    x = 30,364.51

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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.