Home / 20,312.16-30,468.84-7,173.60

Finding the Fourth Proportional to 20,312.16, 30,468.84 and 7,173.60

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Solution

The fourth proportional to 20,312.16, 30,468.84 and 7,173.60 is: 10,760.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,312.16 : 30,468.84 = 7,173.60 : x
  2. Step 2: Convert to fraction form
    20,312.16/30,468.84 = 7,173.60/x
  3. Step 3: Cross multiply
    20,312.16x = 30,468.84 × 7,173.60
  4. Step 4: Simplify right side
    20,312.16x = 218,571,270.62
  5. Step 5: Solve for x
    x = 218,571,270.62/20,312.16
  6. Step 6: Final answer
    x = 10,760.61

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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.