Home / 26,231.57-39,318.72-12,913.73

Finding the Fourth Proportional to 26,231.57, 39,318.72 and 12,913.73

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Solution

The fourth proportional to 26,231.57, 39,318.72 and 12,913.73 is: 19,356.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,231.57 : 39,318.72 = 12,913.73 : x
  2. Step 2: Convert to fraction form
    26,231.57/39,318.72 = 12,913.73/x
  3. Step 3: Cross multiply
    26,231.57x = 39,318.72 × 12,913.73
  4. Step 4: Simplify right side
    26,231.57x = 507,751,334.03
  5. Step 5: Solve for x
    x = 507,751,334.03/26,231.57
  6. Step 6: Final answer
    x = 19,356.50

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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.