Home / 47,876.84-71,831.44-21,219.19

Finding the Fourth Proportional to 47,876.84, 71,831.44 and 21,219.19

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Solution

The fourth proportional to 47,876.84, 71,831.44 and 21,219.19 is: 31,835.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,876.84 : 71,831.44 = 21,219.19 : x
  2. Step 2: Convert to fraction form
    47,876.84/71,831.44 = 21,219.19/x
  3. Step 3: Cross multiply
    47,876.84x = 71,831.44 × 21,219.19
  4. Step 4: Simplify right side
    47,876.84x = 1,524,204,973.33
  5. Step 5: Solve for x
    x = 1,524,204,973.33/47,876.84
  6. Step 6: Final answer
    x = 31,835.96

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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.