Home / 20,274.70-30,413.66-7,130.02

Finding the Fourth Proportional to 20,274.70, 30,413.66 and 7,130.02

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Solution

The fourth proportional to 20,274.70, 30,413.66 and 7,130.02 is: 10,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.70 : 30,413.66 = 7,130.02 : x
  2. Step 2: Convert to fraction form
    20,274.70/30,413.66 = 7,130.02/x
  3. Step 3: Cross multiply
    20,274.70x = 30,413.66 × 7,130.02
  4. Step 4: Simplify right side
    20,274.70x = 216,850,004.07
  5. Step 5: Solve for x
    x = 216,850,004.07/20,274.70
  6. Step 6: Final answer
    x = 10,695.60

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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.