Home / 26,768.30-40,129.87-16,885.80

Finding the Fourth Proportional to 26,768.30, 40,129.87 and 16,885.80

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Solution

The fourth proportional to 26,768.30, 40,129.87 and 16,885.80 is: 25,314.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,768.30 : 40,129.87 = 16,885.80 : x
  2. Step 2: Convert to fraction form
    26,768.30/40,129.87 = 16,885.80/x
  3. Step 3: Cross multiply
    26,768.30x = 40,129.87 × 16,885.80
  4. Step 4: Simplify right side
    26,768.30x = 677,624,758.20
  5. Step 5: Solve for x
    x = 677,624,758.20/26,768.30
  6. Step 6: Final answer
    x = 25,314.45

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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.