Home / 27,947.20-41,920.80-10,413.40

Finding the Fourth Proportional to 27,947.20, 41,920.80 and 10,413.40

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Solution

The fourth proportional to 27,947.20, 41,920.80 and 10,413.40 is: 15,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,947.20 : 41,920.80 = 10,413.40 : x
  2. Step 2: Convert to fraction form
    27,947.20/41,920.80 = 10,413.40/x
  3. Step 3: Cross multiply
    27,947.20x = 41,920.80 × 10,413.40
  4. Step 4: Simplify right side
    27,947.20x = 436,538,058.72
  5. Step 5: Solve for x
    x = 436,538,058.72/27,947.20
  6. Step 6: Final answer
    x = 15,620.10

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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.