Home / 21,313.33-29,409.99-12,357.56

Finding the Fourth Proportional to 21,313.33, 29,409.99 and 12,357.56

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Solution

The fourth proportional to 21,313.33, 29,409.99 and 12,357.56 is: 17,052.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.33 : 29,409.99 = 12,357.56 : x
  2. Step 2: Convert to fraction form
    21,313.33/29,409.99 = 12,357.56/x
  3. Step 3: Cross multiply
    21,313.33x = 29,409.99 × 12,357.56
  4. Step 4: Simplify right side
    21,313.33x = 363,435,743.21
  5. Step 5: Solve for x
    x = 363,435,743.21/21,313.33
  6. Step 6: Final answer
    x = 17,052.04

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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.