Home / 20,468.40-30,670.20-17,163.60

Finding the Fourth Proportional to 20,468.40, 30,670.20 and 17,163.60

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Solution

The fourth proportional to 20,468.40, 30,670.20 and 17,163.60 is: 25,718.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,468.40 : 30,670.20 = 17,163.60 : x
  2. Step 2: Convert to fraction form
    20,468.40/30,670.20 = 17,163.60/x
  3. Step 3: Cross multiply
    20,468.40x = 30,670.20 × 17,163.60
  4. Step 4: Simplify right side
    20,468.40x = 526,411,044.72
  5. Step 5: Solve for x
    x = 526,411,044.72/20,468.40
  6. Step 6: Final answer
    x = 25,718.23

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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.