Home / 29,172.36-40,241.06-18,413.40

Finding the Fourth Proportional to 29,172.36, 40,241.06 and 18,413.40

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Solution

The fourth proportional to 29,172.36, 40,241.06 and 18,413.40 is: 25,399.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,172.36 : 40,241.06 = 18,413.40 : x
  2. Step 2: Convert to fraction form
    29,172.36/40,241.06 = 18,413.40/x
  3. Step 3: Cross multiply
    29,172.36x = 40,241.06 × 18,413.40
  4. Step 4: Simplify right side
    29,172.36x = 740,974,734.20
  5. Step 5: Solve for x
    x = 740,974,734.20/29,172.36
  6. Step 6: Final answer
    x = 25,399.89

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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.