Home / 20,606.10-30,909.17-7,455.39

Finding the Fourth Proportional to 20,606.10, 30,909.17 and 7,455.39

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Solution

The fourth proportional to 20,606.10, 30,909.17 and 7,455.39 is: 11,183.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.10 : 30,909.17 = 7,455.39 : x
  2. Step 2: Convert to fraction form
    20,606.10/30,909.17 = 7,455.39/x
  3. Step 3: Cross multiply
    20,606.10x = 30,909.17 × 7,455.39
  4. Step 4: Simplify right side
    20,606.10x = 230,439,916.93
  5. Step 5: Solve for x
    x = 230,439,916.93/20,606.10
  6. Step 6: Final answer
    x = 11,183.09

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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.