Home / 28,938.96-43,413.84-13,145.10

Finding the Fourth Proportional to 28,938.96, 43,413.84 and 13,145.10

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Solution

The fourth proportional to 28,938.96, 43,413.84 and 13,145.10 is: 19,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,938.96 : 43,413.84 = 13,145.10 : x
  2. Step 2: Convert to fraction form
    28,938.96/43,413.84 = 13,145.10/x
  3. Step 3: Cross multiply
    28,938.96x = 43,413.84 × 13,145.10
  4. Step 4: Simplify right side
    28,938.96x = 570,679,268.18
  5. Step 5: Solve for x
    x = 570,679,268.18/28,938.96
  6. Step 6: Final answer
    x = 19,720.10

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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.