Home / 20,663.54-31,004.07-11,292.61

Finding the Fourth Proportional to 20,663.54, 31,004.07 and 11,292.61

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Solution

The fourth proportional to 20,663.54, 31,004.07 and 11,292.61 is: 16,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,663.54 : 31,004.07 = 11,292.61 : x
  2. Step 2: Convert to fraction form
    20,663.54/31,004.07 = 11,292.61/x
  3. Step 3: Cross multiply
    20,663.54x = 31,004.07 × 11,292.61
  4. Step 4: Simplify right side
    20,663.54x = 350,116,870.92
  5. Step 5: Solve for x
    x = 350,116,870.92/20,663.54
  6. Step 6: Final answer
    x = 16,943.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.