Home / 21,734.80-32,645.96-21,122.32

Finding the Fourth Proportional to 21,734.80, 32,645.96 and 21,122.32

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Solution

The fourth proportional to 21,734.80, 32,645.96 and 21,122.32 is: 31,726.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,734.80 : 32,645.96 = 21,122.32 : x
  2. Step 2: Convert to fraction form
    21,734.80/32,645.96 = 21,122.32/x
  3. Step 3: Cross multiply
    21,734.80x = 32,645.96 × 21,122.32
  4. Step 4: Simplify right side
    21,734.80x = 689,558,413.83
  5. Step 5: Solve for x
    x = 689,558,413.83/21,734.80
  6. Step 6: Final answer
    x = 31,726.01

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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.