Home / 21,795.22-30,041.46-15,413.56

Finding the Fourth Proportional to 21,795.22, 30,041.46 and 15,413.56

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Solution

The fourth proportional to 21,795.22, 30,041.46 and 15,413.56 is: 21,245.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,795.22 : 30,041.46 = 15,413.56 : x
  2. Step 2: Convert to fraction form
    21,795.22/30,041.46 = 15,413.56/x
  3. Step 3: Cross multiply
    21,795.22x = 30,041.46 × 15,413.56
  4. Step 4: Simplify right side
    21,795.22x = 463,045,846.20
  5. Step 5: Solve for x
    x = 463,045,846.20/21,795.22
  6. Step 6: Final answer
    x = 21,245.29

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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.