Home / 20,011.48-30,025.29-8,910.58

Finding the Fourth Proportional to 20,011.48, 30,025.29 and 8,910.58

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Solution

The fourth proportional to 20,011.48, 30,025.29 and 8,910.58 is: 13,369.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.48 : 30,025.29 = 8,910.58 : x
  2. Step 2: Convert to fraction form
    20,011.48/30,025.29 = 8,910.58/x
  3. Step 3: Cross multiply
    20,011.48x = 30,025.29 × 8,910.58
  4. Step 4: Simplify right side
    20,011.48x = 267,542,748.57
  5. Step 5: Solve for x
    x = 267,542,748.57/20,011.48
  6. Step 6: Final answer
    x = 13,369.46

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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.