Home / 20,570.43-30,856.72-6,531.56

Finding the Fourth Proportional to 20,570.43, 30,856.72 and 6,531.56

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Solution

The fourth proportional to 20,570.43, 30,856.72 and 6,531.56 is: 9,797.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,570.43 : 30,856.72 = 6,531.56 : x
  2. Step 2: Convert to fraction form
    20,570.43/30,856.72 = 6,531.56/x
  3. Step 3: Cross multiply
    20,570.43x = 30,856.72 × 6,531.56
  4. Step 4: Simplify right side
    20,570.43x = 201,542,331.14
  5. Step 5: Solve for x
    x = 201,542,331.14/20,570.43
  6. Step 6: Final answer
    x = 9,797.67

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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.