Home / 26,930.20-40,379.10-13,808.20

Finding the Fourth Proportional to 26,930.20, 40,379.10 and 13,808.20

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Solution

The fourth proportional to 26,930.20, 40,379.10 and 13,808.20 is: 20,703.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,930.20 : 40,379.10 = 13,808.20 : x
  2. Step 2: Convert to fraction form
    26,930.20/40,379.10 = 13,808.20/x
  3. Step 3: Cross multiply
    26,930.20x = 40,379.10 × 13,808.20
  4. Step 4: Simplify right side
    26,930.20x = 557,562,688.62
  5. Step 5: Solve for x
    x = 557,562,688.62/26,930.20
  6. Step 6: Final answer
    x = 20,703.99

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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.