Home / 20,796.66-31,202.75-12,482.66

Finding the Fourth Proportional to 20,796.66, 31,202.75 and 12,482.66

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Solution

The fourth proportional to 20,796.66, 31,202.75 and 12,482.66 is: 18,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796.66 : 31,202.75 = 12,482.66 : x
  2. Step 2: Convert to fraction form
    20,796.66/31,202.75 = 12,482.66/x
  3. Step 3: Cross multiply
    20,796.66x = 31,202.75 × 12,482.66
  4. Step 4: Simplify right side
    20,796.66x = 389,493,319.32
  5. Step 5: Solve for x
    x = 389,493,319.32/20,796.66
  6. Step 6: Final answer
    x = 18,728.65

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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.