Home / 20,275.48-27,989.28-11,892.52

Finding the Fourth Proportional to 20,275.48, 27,989.28 and 11,892.52

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Solution

The fourth proportional to 20,275.48, 27,989.28 and 11,892.52 is: 16,417.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275.48 : 27,989.28 = 11,892.52 : x
  2. Step 2: Convert to fraction form
    20,275.48/27,989.28 = 11,892.52/x
  3. Step 3: Cross multiply
    20,275.48x = 27,989.28 × 11,892.52
  4. Step 4: Simplify right side
    20,275.48x = 332,863,072.19
  5. Step 5: Solve for x
    x = 332,863,072.19/20,275.48
  6. Step 6: Final answer
    x = 16,417.03

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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.