Home / 21,832.06-30,126.44-12,402.04

Finding the Fourth Proportional to 21,832.06, 30,126.44 and 12,402.04

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Solution

The fourth proportional to 21,832.06, 30,126.44 and 12,402.04 is: 17,113.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,832.06 : 30,126.44 = 12,402.04 : x
  2. Step 2: Convert to fraction form
    21,832.06/30,126.44 = 12,402.04/x
  3. Step 3: Cross multiply
    21,832.06x = 30,126.44 × 12,402.04
  4. Step 4: Simplify right side
    21,832.06x = 373,629,313.94
  5. Step 5: Solve for x
    x = 373,629,313.94/21,832.06
  6. Step 6: Final answer
    x = 17,113.79

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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.