Home / 19,895.38-27,457.96-11,400.25

Finding the Fourth Proportional to 19,895.38, 27,457.96 and 11,400.25

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Solution

The fourth proportional to 19,895.38, 27,457.96 and 11,400.25 is: 15,733.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,895.38 : 27,457.96 = 11,400.25 : x
  2. Step 2: Convert to fraction form
    19,895.38/27,457.96 = 11,400.25/x
  3. Step 3: Cross multiply
    19,895.38x = 27,457.96 × 11,400.25
  4. Step 4: Simplify right side
    19,895.38x = 313,027,563.43
  5. Step 5: Solve for x
    x = 313,027,563.43/19,895.38
  6. Step 6: Final answer
    x = 15,733.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.