Home / 21,829.70-30,101.13-14,743.82

Finding the Fourth Proportional to 21,829.70, 30,101.13 and 14,743.82

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Solution

The fourth proportional to 21,829.70, 30,101.13 and 14,743.82 is: 20,330.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,829.70 : 30,101.13 = 14,743.82 : x
  2. Step 2: Convert to fraction form
    21,829.70/30,101.13 = 14,743.82/x
  3. Step 3: Cross multiply
    21,829.70x = 30,101.13 × 14,743.82
  4. Step 4: Simplify right side
    21,829.70x = 443,805,492.01
  5. Step 5: Solve for x
    x = 443,805,492.01/21,829.70
  6. Step 6: Final answer
    x = 20,330.36

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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.