Home / 20,266.64-30,393.96-7,116.56

Finding the Fourth Proportional to 20,266.64, 30,393.96 and 7,116.56

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Solution

The fourth proportional to 20,266.64, 30,393.96 and 7,116.56 is: 10,672.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.64 : 30,393.96 = 7,116.56 : x
  2. Step 2: Convert to fraction form
    20,266.64/30,393.96 = 7,116.56/x
  3. Step 3: Cross multiply
    20,266.64x = 30,393.96 × 7,116.56
  4. Step 4: Simplify right side
    20,266.64x = 216,300,439.98
  5. Step 5: Solve for x
    x = 216,300,439.98/20,266.64
  6. Step 6: Final answer
    x = 10,672.73

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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.