Home / 21,638.56-29,842.44-14,082.08

Finding the Fourth Proportional to 21,638.56, 29,842.44 and 14,082.08

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Solution

The fourth proportional to 21,638.56, 29,842.44 and 14,082.08 is: 19,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,638.56 : 29,842.44 = 14,082.08 : x
  2. Step 2: Convert to fraction form
    21,638.56/29,842.44 = 14,082.08/x
  3. Step 3: Cross multiply
    21,638.56x = 29,842.44 × 14,082.08
  4. Step 4: Simplify right side
    21,638.56x = 420,243,627.48
  5. Step 5: Solve for x
    x = 420,243,627.48/21,638.56
  6. Step 6: Final answer
    x = 19,421.05

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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.