Home / 32,871.36-49,262.88-21,178.56

Finding the Fourth Proportional to 32,871.36, 49,262.88 and 21,178.56

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Solution

The fourth proportional to 32,871.36, 49,262.88 and 21,178.56 is: 31,739.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,871.36 : 49,262.88 = 21,178.56 : x
  2. Step 2: Convert to fraction form
    32,871.36/49,262.88 = 21,178.56/x
  3. Step 3: Cross multiply
    32,871.36x = 49,262.88 × 21,178.56
  4. Step 4: Simplify right side
    32,871.36x = 1,043,316,859.85
  5. Step 5: Solve for x
    x = 1,043,316,859.85/32,871.36
  6. Step 6: Final answer
    x = 31,739.39

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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.