Home / 21,209.48-29,249.52-14,413.64

Finding the Fourth Proportional to 21,209.48, 29,249.52 and 14,413.64

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Solution

The fourth proportional to 21,209.48, 29,249.52 and 14,413.64 is: 19,877.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,209.48 : 29,249.52 = 14,413.64 : x
  2. Step 2: Convert to fraction form
    21,209.48/29,249.52 = 14,413.64/x
  3. Step 3: Cross multiply
    21,209.48x = 29,249.52 × 14,413.64
  4. Step 4: Simplify right side
    21,209.48x = 421,592,106.60
  5. Step 5: Solve for x
    x = 421,592,106.60/21,209.48
  6. Step 6: Final answer
    x = 19,877.53

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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.