Home / 39,907.81-55,072.47-22,003.57

Finding the Fourth Proportional to 39,907.81, 55,072.47 and 22,003.57

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Solution

The fourth proportional to 39,907.81, 55,072.47 and 22,003.57 is: 30,364.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,907.81 : 55,072.47 = 22,003.57 : x
  2. Step 2: Convert to fraction form
    39,907.81/55,072.47 = 22,003.57/x
  3. Step 3: Cross multiply
    39,907.81x = 55,072.47 × 22,003.57
  4. Step 4: Simplify right side
    39,907.81x = 1,211,790,948.72
  5. Step 5: Solve for x
    x = 1,211,790,948.72/39,907.81
  6. Step 6: Final answer
    x = 30,364.76

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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.