Home / 26,288.20-39,438.58-8,758.18

Finding the Fourth Proportional to 26,288.20, 39,438.58 and 8,758.18

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Solution

The fourth proportional to 26,288.20, 39,438.58 and 8,758.18 is: 13,139.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,288.20 : 39,438.58 = 8,758.18 : x
  2. Step 2: Convert to fraction form
    26,288.20/39,438.58 = 8,758.18/x
  3. Step 3: Cross multiply
    26,288.20x = 39,438.58 × 8,758.18
  4. Step 4: Simplify right side
    26,288.20x = 345,410,182.58
  5. Step 5: Solve for x
    x = 345,410,182.58/26,288.20
  6. Step 6: Final answer
    x = 13,139.36

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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.