Home / 20,413.52-30,371.76-20,344.40

Finding the Fourth Proportional to 20,413.52, 30,371.76 and 20,344.40

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Solution

The fourth proportional to 20,413.52, 30,371.76 and 20,344.40 is: 30,268.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,413.52 : 30,371.76 = 20,344.40 : x
  2. Step 2: Convert to fraction form
    20,413.52/30,371.76 = 20,344.40/x
  3. Step 3: Cross multiply
    20,413.52x = 30,371.76 × 20,344.40
  4. Step 4: Simplify right side
    20,413.52x = 617,895,234.14
  5. Step 5: Solve for x
    x = 617,895,234.14/20,413.52
  6. Step 6: Final answer
    x = 30,268.92

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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.