Home / 21,413.12-32,119.68-19,754.24

Finding the Fourth Proportional to 21,413.12, 32,119.68 and 19,754.24

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Solution

The fourth proportional to 21,413.12, 32,119.68 and 19,754.24 is: 29,631.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,413.12 : 32,119.68 = 19,754.24 : x
  2. Step 2: Convert to fraction form
    21,413.12/32,119.68 = 19,754.24/x
  3. Step 3: Cross multiply
    21,413.12x = 32,119.68 × 19,754.24
  4. Step 4: Simplify right side
    21,413.12x = 634,499,867.44
  5. Step 5: Solve for x
    x = 634,499,867.44/21,413.12
  6. Step 6: Final answer
    x = 29,631.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.