Home / 20,284.75-30,427.13-6,433.75

Finding the Fourth Proportional to 20,284.75, 30,427.13 and 6,433.75

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Solution

The fourth proportional to 20,284.75, 30,427.13 and 6,433.75 is: 9,650.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.75 : 30,427.13 = 6,433.75 : x
  2. Step 2: Convert to fraction form
    20,284.75/30,427.13 = 6,433.75/x
  3. Step 3: Cross multiply
    20,284.75x = 30,427.13 × 6,433.75
  4. Step 4: Simplify right side
    20,284.75x = 195,760,547.64
  5. Step 5: Solve for x
    x = 195,760,547.64/20,284.75
  6. Step 6: Final answer
    x = 9,650.63

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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.