Home / 26,759.93-40,139.99-8,990.09

Finding the Fourth Proportional to 26,759.93, 40,139.99 and 8,990.09

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Solution

The fourth proportional to 26,759.93, 40,139.99 and 8,990.09 is: 13,485.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,759.93 : 40,139.99 = 8,990.09 : x
  2. Step 2: Convert to fraction form
    26,759.93/40,139.99 = 8,990.09/x
  3. Step 3: Cross multiply
    26,759.93x = 40,139.99 × 8,990.09
  4. Step 4: Simplify right side
    26,759.93x = 360,861,944.47
  5. Step 5: Solve for x
    x = 360,861,944.47/26,759.93
  6. Step 6: Final answer
    x = 13,485.16

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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.