Home / 26,809.40-40,203.80-12,758.60

Finding the Fourth Proportional to 26,809.40, 40,203.80 and 12,758.60

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Solution

The fourth proportional to 26,809.40, 40,203.80 and 12,758.60 is: 19,133.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,809.40 : 40,203.80 = 12,758.60 : x
  2. Step 2: Convert to fraction form
    26,809.40/40,203.80 = 12,758.60/x
  3. Step 3: Cross multiply
    26,809.40x = 40,203.80 × 12,758.60
  4. Step 4: Simplify right side
    26,809.40x = 512,944,202.68
  5. Step 5: Solve for x
    x = 512,944,202.68/26,809.40
  6. Step 6: Final answer
    x = 19,133.00

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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.