Home / 21,576.29-29,776.01-11,885.31

Finding the Fourth Proportional to 21,576.29, 29,776.01 and 11,885.31

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Solution

The fourth proportional to 21,576.29, 29,776.01 and 11,885.31 is: 16,402.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,576.29 : 29,776.01 = 11,885.31 : x
  2. Step 2: Convert to fraction form
    21,576.29/29,776.01 = 11,885.31/x
  3. Step 3: Cross multiply
    21,576.29x = 29,776.01 × 11,885.31
  4. Step 4: Simplify right side
    21,576.29x = 353,897,049.99
  5. Step 5: Solve for x
    x = 353,897,049.99/21,576.29
  6. Step 6: Final answer
    x = 16,402.13

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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.