Home / 19,805.28-27,330.10-10,851

Finding the Fourth Proportional to 19,805.28, 27,330.10 and 10,851

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Solution

The fourth proportional to 19,805.28, 27,330.10 and 10,851 is: 14,973.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.28 : 27,330.10 = 10,851 : x
  2. Step 2: Convert to fraction form
    19,805.28/27,330.10 = 10,851/x
  3. Step 3: Cross multiply
    19,805.28x = 27,330.10 × 10,851
  4. Step 4: Simplify right side
    19,805.28x = 296,558,915.10
  5. Step 5: Solve for x
    x = 296,558,915.10/19,805.28
  6. Step 6: Final answer
    x = 14,973.73

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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.