Home / 20,264.36-30,400.86-6,413.48

Finding the Fourth Proportional to 20,264.36, 30,400.86 and 6,413.48

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Solution

The fourth proportional to 20,264.36, 30,400.86 and 6,413.48 is: 9,621.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.36 : 30,400.86 = 6,413.48 : x
  2. Step 2: Convert to fraction form
    20,264.36/30,400.86 = 6,413.48/x
  3. Step 3: Cross multiply
    20,264.36x = 30,400.86 × 6,413.48
  4. Step 4: Simplify right side
    20,264.36x = 194,975,307.59
  5. Step 5: Solve for x
    x = 194,975,307.59/20,264.36
  6. Step 6: Final answer
    x = 9,621.59

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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.