Home / 20,434.26-30,653.36-7,955.30

Finding the Fourth Proportional to 20,434.26, 30,653.36 and 7,955.30

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Solution

The fourth proportional to 20,434.26, 30,653.36 and 7,955.30 is: 11,933.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.26 : 30,653.36 = 7,955.30 : x
  2. Step 2: Convert to fraction form
    20,434.26/30,653.36 = 7,955.30/x
  3. Step 3: Cross multiply
    20,434.26x = 30,653.36 × 7,955.30
  4. Step 4: Simplify right side
    20,434.26x = 243,856,511.60
  5. Step 5: Solve for x
    x = 243,856,511.60/20,434.26
  6. Step 6: Final answer
    x = 11,933.71

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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.