Home / 21,747.36-30,010.32-13,362.24

Finding the Fourth Proportional to 21,747.36, 30,010.32 and 13,362.24

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Solution

The fourth proportional to 21,747.36, 30,010.32 and 13,362.24 is: 18,439.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,747.36 : 30,010.32 = 13,362.24 : x
  2. Step 2: Convert to fraction form
    21,747.36/30,010.32 = 13,362.24/x
  3. Step 3: Cross multiply
    21,747.36x = 30,010.32 × 13,362.24
  4. Step 4: Simplify right side
    21,747.36x = 401,005,098.32
  5. Step 5: Solve for x
    x = 401,005,098.32/21,747.36
  6. Step 6: Final answer
    x = 18,439.25

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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.