Home / 26,945.73-40,400.99-12,905.30

Finding the Fourth Proportional to 26,945.73, 40,400.99 and 12,905.30

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Solution

The fourth proportional to 26,945.73, 40,400.99 and 12,905.30 is: 19,349.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,945.73 : 40,400.99 = 12,905.30 : x
  2. Step 2: Convert to fraction form
    26,945.73/40,400.99 = 12,905.30/x
  3. Step 3: Cross multiply
    26,945.73x = 40,400.99 × 12,905.30
  4. Step 4: Simplify right side
    26,945.73x = 521,386,629.72
  5. Step 5: Solve for x
    x = 521,386,629.72/26,945.73
  6. Step 6: Final answer
    x = 19,349.51

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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.