Home / 26,511.68-39,772.32-10,920.80

Finding the Fourth Proportional to 26,511.68, 39,772.32 and 10,920.80

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Solution

The fourth proportional to 26,511.68, 39,772.32 and 10,920.80 is: 16,383.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,511.68 : 39,772.32 = 10,920.80 : x
  2. Step 2: Convert to fraction form
    26,511.68/39,772.32 = 10,920.80/x
  3. Step 3: Cross multiply
    26,511.68x = 39,772.32 × 10,920.80
  4. Step 4: Simplify right side
    26,511.68x = 434,345,552.26
  5. Step 5: Solve for x
    x = 434,345,552.26/26,511.68
  6. Step 6: Final answer
    x = 16,383.18

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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.