Home / 20,434.76-30,635.43-10,576.86

Finding the Fourth Proportional to 20,434.76, 30,635.43 and 10,576.86

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Solution

The fourth proportional to 20,434.76, 30,635.43 and 10,576.86 is: 15,856.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.76 : 30,635.43 = 10,576.86 : x
  2. Step 2: Convert to fraction form
    20,434.76/30,635.43 = 10,576.86/x
  3. Step 3: Cross multiply
    20,434.76x = 30,635.43 × 10,576.86
  4. Step 4: Simplify right side
    20,434.76x = 324,026,654.15
  5. Step 5: Solve for x
    x = 324,026,654.15/20,434.76
  6. Step 6: Final answer
    x = 15,856.64

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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.