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Finding the Fourth Proportional to 20,034.32, 30,051.48 and 7,713.68

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Solution

The fourth proportional to 20,034.32, 30,051.48 and 7,713.68 is: 11,570.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,034.32 : 30,051.48 = 7,713.68 : x
  2. Step 2: Convert to fraction form
    20,034.32/30,051.48 = 7,713.68/x
  3. Step 3: Cross multiply
    20,034.32x = 30,051.48 × 7,713.68
  4. Step 4: Simplify right side
    20,034.32x = 231,807,500.25
  5. Step 5: Solve for x
    x = 231,807,500.25/20,034.32
  6. Step 6: Final answer
    x = 11,570.52

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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.