Home / 21,313.06-29,406.25-12,114.49

Finding the Fourth Proportional to 21,313.06, 29,406.25 and 12,114.49

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Solution

The fourth proportional to 21,313.06, 29,406.25 and 12,114.49 is: 16,714.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.06 : 29,406.25 = 12,114.49 : x
  2. Step 2: Convert to fraction form
    21,313.06/29,406.25 = 12,114.49/x
  3. Step 3: Cross multiply
    21,313.06x = 29,406.25 × 12,114.49
  4. Step 4: Simplify right side
    21,313.06x = 356,241,721.56
  5. Step 5: Solve for x
    x = 356,241,721.56/21,313.06
  6. Step 6: Final answer
    x = 16,714.71

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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.