Home / 26,842.80-40,266.32-7,121.36

Finding the Fourth Proportional to 26,842.80, 40,266.32 and 7,121.36

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Solution

The fourth proportional to 26,842.80, 40,266.32 and 7,121.36 is: 10,682.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,842.80 : 40,266.32 = 7,121.36 : x
  2. Step 2: Convert to fraction form
    26,842.80/40,266.32 = 7,121.36/x
  3. Step 3: Cross multiply
    26,842.80x = 40,266.32 × 7,121.36
  4. Step 4: Simplify right side
    26,842.80x = 286,750,960.60
  5. Step 5: Solve for x
    x = 286,750,960.60/26,842.80
  6. Step 6: Final answer
    x = 10,682.60

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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.