Home / 21,413.39-29,549.52-11,853.64

Finding the Fourth Proportional to 21,413.39, 29,549.52 and 11,853.64

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Solution

The fourth proportional to 21,413.39, 29,549.52 and 11,853.64 is: 16,357.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,413.39 : 29,549.52 = 11,853.64 : x
  2. Step 2: Convert to fraction form
    21,413.39/29,549.52 = 11,853.64/x
  3. Step 3: Cross multiply
    21,413.39x = 29,549.52 × 11,853.64
  4. Step 4: Simplify right side
    21,413.39x = 350,269,165.24
  5. Step 5: Solve for x
    x = 350,269,165.24/21,413.39
  6. Step 6: Final answer
    x = 16,357.48

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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.