Home / 39,521.20-54,539.22-21,616.36

Finding the Fourth Proportional to 39,521.20, 54,539.22 and 21,616.36

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Solution

The fourth proportional to 39,521.20, 54,539.22 and 21,616.36 is: 29,830.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,521.20 : 54,539.22 = 21,616.36 : x
  2. Step 2: Convert to fraction form
    39,521.20/54,539.22 = 21,616.36/x
  3. Step 3: Cross multiply
    39,521.20x = 54,539.22 × 21,616.36
  4. Step 4: Simplify right side
    39,521.20x = 1,178,939,413.64
  5. Step 5: Solve for x
    x = 1,178,939,413.64/39,521.20
  6. Step 6: Final answer
    x = 29,830.56

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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.