Home / 21,044.46-29,007.26-18,312

Finding the Fourth Proportional to 21,044.46, 29,007.26 and 18,312

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Solution

The fourth proportional to 21,044.46, 29,007.26 and 18,312 is: 25,240.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.46 : 29,007.26 = 18,312 : x
  2. Step 2: Convert to fraction form
    21,044.46/29,007.26 = 18,312/x
  3. Step 3: Cross multiply
    21,044.46x = 29,007.26 × 18,312
  4. Step 4: Simplify right side
    21,044.46x = 531,180,945.12
  5. Step 5: Solve for x
    x = 531,180,945.12/21,044.46
  6. Step 6: Final answer
    x = 25,240.89

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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.