Home / 26,135.10-39,145.05-13,808.70

Finding the Fourth Proportional to 26,135.10, 39,145.05 and 13,808.70

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Solution

The fourth proportional to 26,135.10, 39,145.05 and 13,808.70 is: 20,682.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,135.10 : 39,145.05 = 13,808.70 : x
  2. Step 2: Convert to fraction form
    26,135.10/39,145.05 = 13,808.70/x
  3. Step 3: Cross multiply
    26,135.10x = 39,145.05 × 13,808.70
  4. Step 4: Simplify right side
    26,135.10x = 540,542,251.94
  5. Step 5: Solve for x
    x = 540,542,251.94/26,135.10
  6. Step 6: Final answer
    x = 20,682.62

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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.