Home / 20,937.06-31,413.96-7,800.48

Finding the Fourth Proportional to 20,937.06, 31,413.96 and 7,800.48

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Solution

The fourth proportional to 20,937.06, 31,413.96 and 7,800.48 is: 11,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,937.06 : 31,413.96 = 7,800.48 : x
  2. Step 2: Convert to fraction form
    20,937.06/31,413.96 = 7,800.48/x
  3. Step 3: Cross multiply
    20,937.06x = 31,413.96 × 7,800.48
  4. Step 4: Simplify right side
    20,937.06x = 245,043,966.70
  5. Step 5: Solve for x
    x = 245,043,966.70/20,937.06
  6. Step 6: Final answer
    x = 11,703.84

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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.