Home / 26,511.18-39,771.60-10,920.30

Finding the Fourth Proportional to 26,511.18, 39,771.60 and 10,920.30

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Solution

The fourth proportional to 26,511.18, 39,771.60 and 10,920.30 is: 16,382.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,511.18 : 39,771.60 = 10,920.30 : x
  2. Step 2: Convert to fraction form
    26,511.18/39,771.60 = 10,920.30/x
  3. Step 3: Cross multiply
    26,511.18x = 39,771.60 × 10,920.30
  4. Step 4: Simplify right side
    26,511.18x = 434,317,803.48
  5. Step 5: Solve for x
    x = 434,317,803.48/26,511.18
  6. Step 6: Final answer
    x = 16,382.44

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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.