Home / 20,962.32-28,933.70-12,356.02

Finding the Fourth Proportional to 20,962.32, 28,933.70 and 12,356.02

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Solution

The fourth proportional to 20,962.32, 28,933.70 and 12,356.02 is: 17,054.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.32 : 28,933.70 = 12,356.02 : x
  2. Step 2: Convert to fraction form
    20,962.32/28,933.70 = 12,356.02/x
  3. Step 3: Cross multiply
    20,962.32x = 28,933.70 × 12,356.02
  4. Step 4: Simplify right side
    20,962.32x = 357,505,375.87
  5. Step 5: Solve for x
    x = 357,505,375.87/20,962.32
  6. Step 6: Final answer
    x = 17,054.67

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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.