Home / 21,997.44-30,345.32-13,917.53

Finding the Fourth Proportional to 21,997.44, 30,345.32 and 13,917.53

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Solution

The fourth proportional to 21,997.44, 30,345.32 and 13,917.53 is: 19,199.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.44 : 30,345.32 = 13,917.53 : x
  2. Step 2: Convert to fraction form
    21,997.44/30,345.32 = 13,917.53/x
  3. Step 3: Cross multiply
    21,997.44x = 30,345.32 × 13,917.53
  4. Step 4: Simplify right side
    21,997.44x = 422,331,901.46
  5. Step 5: Solve for x
    x = 422,331,901.46/21,997.44
  6. Step 6: Final answer
    x = 19,199.14

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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.