Home / 21,614.43-29,827.92-11,678.43

Finding the Fourth Proportional to 21,614.43, 29,827.92 and 11,678.43

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Solution

The fourth proportional to 21,614.43, 29,827.92 and 11,678.43 is: 16,116.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,614.43 : 29,827.92 = 11,678.43 : x
  2. Step 2: Convert to fraction form
    21,614.43/29,827.92 = 11,678.43/x
  3. Step 3: Cross multiply
    21,614.43x = 29,827.92 × 11,678.43
  4. Step 4: Simplify right side
    21,614.43x = 348,343,275.77
  5. Step 5: Solve for x
    x = 348,343,275.77/21,614.43
  6. Step 6: Final answer
    x = 16,116.24

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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.