Home / 43,413.12-65,090.16-20,026.80

Finding the Fourth Proportional to 43,413.12, 65,090.16 and 20,026.80

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Solution

The fourth proportional to 43,413.12, 65,090.16 and 20,026.80 is: 30,026.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,413.12 : 65,090.16 = 20,026.80 : x
  2. Step 2: Convert to fraction form
    43,413.12/65,090.16 = 20,026.80/x
  3. Step 3: Cross multiply
    43,413.12x = 65,090.16 × 20,026.80
  4. Step 4: Simplify right side
    43,413.12x = 1,303,547,616.29
  5. Step 5: Solve for x
    x = 1,303,547,616.29/43,413.12
  6. Step 6: Final answer
    x = 30,026.58

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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.