Home / 20,935.14-31,413.48-11,573.40

Finding the Fourth Proportional to 20,935.14, 31,413.48 and 11,573.40

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Solution

The fourth proportional to 20,935.14, 31,413.48 and 11,573.40 is: 17,366.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,935.14 : 31,413.48 = 11,573.40 : x
  2. Step 2: Convert to fraction form
    20,935.14/31,413.48 = 11,573.40/x
  3. Step 3: Cross multiply
    20,935.14x = 31,413.48 × 11,573.40
  4. Step 4: Simplify right side
    20,935.14x = 363,560,769.43
  5. Step 5: Solve for x
    x = 363,560,769.43/20,935.14
  6. Step 6: Final answer
    x = 17,366.05

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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.