Home / 18,708.12-28,056.69-15,413.04

Finding the Fourth Proportional to 18,708.12, 28,056.69 and 15,413.04

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Solution

The fourth proportional to 18,708.12, 28,056.69 and 15,413.04 is: 23,115.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708.12 : 28,056.69 = 15,413.04 : x
  2. Step 2: Convert to fraction form
    18,708.12/28,056.69 = 15,413.04/x
  3. Step 3: Cross multiply
    18,708.12x = 28,056.69 × 15,413.04
  4. Step 4: Simplify right side
    18,708.12x = 432,438,885.24
  5. Step 5: Solve for x
    x = 432,438,885.24/18,708.12
  6. Step 6: Final answer
    x = 23,115.04

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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.