Home / 39,907.08-55,072.14-22,002.72

Finding the Fourth Proportional to 39,907.08, 55,072.14 and 22,002.72

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Solution

The fourth proportional to 39,907.08, 55,072.14 and 22,002.72 is: 30,363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,907.08 : 55,072.14 = 22,002.72 : x
  2. Step 2: Convert to fraction form
    39,907.08/55,072.14 = 22,002.72/x
  3. Step 3: Cross multiply
    39,907.08x = 55,072.14 × 22,002.72
  4. Step 4: Simplify right side
    39,907.08x = 1,211,736,876.22
  5. Step 5: Solve for x
    x = 1,211,736,876.22/39,907.08
  6. Step 6: Final answer
    x = 30,363.96

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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.