Home / 20,497.24-28,286.76-12,539.32

Finding the Fourth Proportional to 20,497.24, 28,286.76 and 12,539.32

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Solution

The fourth proportional to 20,497.24, 28,286.76 and 12,539.32 is: 17,304.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,497.24 : 28,286.76 = 12,539.32 : x
  2. Step 2: Convert to fraction form
    20,497.24/28,286.76 = 12,539.32/x
  3. Step 3: Cross multiply
    20,497.24x = 28,286.76 × 12,539.32
  4. Step 4: Simplify right side
    20,497.24x = 354,696,735.40
  5. Step 5: Solve for x
    x = 354,696,735.40/20,497.24
  6. Step 6: Final answer
    x = 17,304.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.