Home / 26,928.70-40,390.20-7,209.26

Finding the Fourth Proportional to 26,928.70, 40,390.20 and 7,209.26

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Solution

The fourth proportional to 26,928.70, 40,390.20 and 7,209.26 is: 10,813.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,928.70 : 40,390.20 = 7,209.26 : x
  2. Step 2: Convert to fraction form
    26,928.70/40,390.20 = 7,209.26/x
  3. Step 3: Cross multiply
    26,928.70x = 40,390.20 × 7,209.26
  4. Step 4: Simplify right side
    26,928.70x = 291,183,453.25
  5. Step 5: Solve for x
    x = 291,183,453.25/26,928.70
  6. Step 6: Final answer
    x = 10,813.13

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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.