Home / 21,744.56-30,007.38-11,808.56

Finding the Fourth Proportional to 21,744.56, 30,007.38 and 11,808.56

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Solution

The fourth proportional to 21,744.56, 30,007.38 and 11,808.56 is: 16,295.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,744.56 : 30,007.38 = 11,808.56 : x
  2. Step 2: Convert to fraction form
    21,744.56/30,007.38 = 11,808.56/x
  3. Step 3: Cross multiply
    21,744.56x = 30,007.38 × 11,808.56
  4. Step 4: Simplify right side
    21,744.56x = 354,343,947.17
  5. Step 5: Solve for x
    x = 354,343,947.17/21,744.56
  6. Step 6: Final answer
    x = 16,295.75

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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.