Home / 20,770.41-31,144.50-9,682.32

Finding the Fourth Proportional to 20,770.41, 31,144.50 and 9,682.32

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Solution

The fourth proportional to 20,770.41, 31,144.50 and 9,682.32 is: 14,518.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,770.41 : 31,144.50 = 9,682.32 : x
  2. Step 2: Convert to fraction form
    20,770.41/31,144.50 = 9,682.32/x
  3. Step 3: Cross multiply
    20,770.41x = 31,144.50 × 9,682.32
  4. Step 4: Simplify right side
    20,770.41x = 301,551,015.24
  5. Step 5: Solve for x
    x = 301,551,015.24/20,770.41
  6. Step 6: Final answer
    x = 14,518.30

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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.