Home / 26,785.11-40,171.89-16,911.21

Finding the Fourth Proportional to 26,785.11, 40,171.89 and 16,911.21

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Solution

The fourth proportional to 26,785.11, 40,171.89 and 16,911.21 is: 25,363.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,785.11 : 40,171.89 = 16,911.21 : x
  2. Step 2: Convert to fraction form
    26,785.11/40,171.89 = 16,911.21/x
  3. Step 3: Cross multiply
    26,785.11x = 40,171.89 × 16,911.21
  4. Step 4: Simplify right side
    26,785.11x = 679,355,267.89
  5. Step 5: Solve for x
    x = 679,355,267.89/26,785.11
  6. Step 6: Final answer
    x = 25,363.17

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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.