Home / 39,943.90-55,122.72-22,038.88

Finding the Fourth Proportional to 39,943.90, 55,122.72 and 22,038.88

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Solution

The fourth proportional to 39,943.90, 55,122.72 and 22,038.88 is: 30,413.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,943.90 : 55,122.72 = 22,038.88 : x
  2. Step 2: Convert to fraction form
    39,943.90/55,122.72 = 22,038.88/x
  3. Step 3: Cross multiply
    39,943.90x = 55,122.72 × 22,038.88
  4. Step 4: Simplify right side
    39,943.90x = 1,214,843,011.35
  5. Step 5: Solve for x
    x = 1,214,843,011.35/39,943.90
  6. Step 6: Final answer
    x = 30,413.73

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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.