Home / 39,907.19-55,072.31-22,002.90

Finding the Fourth Proportional to 39,907.19, 55,072.31 and 22,002.90

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Solution

The fourth proportional to 39,907.19, 55,072.31 and 22,002.90 is: 30,364.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,907.19 : 55,072.31 = 22,002.90 : x
  2. Step 2: Convert to fraction form
    39,907.19/55,072.31 = 22,002.90/x
  3. Step 3: Cross multiply
    39,907.19x = 55,072.31 × 22,002.90
  4. Step 4: Simplify right side
    39,907.19x = 1,211,750,419.68
  5. Step 5: Solve for x
    x = 1,211,750,419.68/39,907.19
  6. Step 6: Final answer
    x = 30,364.22

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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.