Home / 20,892.41-28,831.98-11,460.97

Finding the Fourth Proportional to 20,892.41, 28,831.98 and 11,460.97

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Solution

The fourth proportional to 20,892.41, 28,831.98 and 11,460.97 is: 15,816.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,892.41 : 28,831.98 = 11,460.97 : x
  2. Step 2: Convert to fraction form
    20,892.41/28,831.98 = 11,460.97/x
  3. Step 3: Cross multiply
    20,892.41x = 28,831.98 × 11,460.97
  4. Step 4: Simplify right side
    20,892.41x = 330,442,457.82
  5. Step 5: Solve for x
    x = 330,442,457.82/20,892.41
  6. Step 6: Final answer
    x = 15,816.39

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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.