Home / 20,538.52-30,659.21-18,047.38

Finding the Fourth Proportional to 20,538.52, 30,659.21 and 18,047.38

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Solution

The fourth proportional to 20,538.52, 30,659.21 and 18,047.38 is: 26,940.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538.52 : 30,659.21 = 18,047.38 : x
  2. Step 2: Convert to fraction form
    20,538.52/30,659.21 = 18,047.38/x
  3. Step 3: Cross multiply
    20,538.52x = 30,659.21 × 18,047.38
  4. Step 4: Simplify right side
    20,538.52x = 553,318,413.37
  5. Step 5: Solve for x
    x = 553,318,413.37/20,538.52
  6. Step 6: Final answer
    x = 26,940.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.