Home / 21,914.30-32,871.45-12,550.70

Finding the Fourth Proportional to 21,914.30, 32,871.45 and 12,550.70

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Solution

The fourth proportional to 21,914.30, 32,871.45 and 12,550.70 is: 18,826.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,914.30 : 32,871.45 = 12,550.70 : x
  2. Step 2: Convert to fraction form
    21,914.30/32,871.45 = 12,550.70/x
  3. Step 3: Cross multiply
    21,914.30x = 32,871.45 × 12,550.70
  4. Step 4: Simplify right side
    21,914.30x = 412,559,707.52
  5. Step 5: Solve for x
    x = 412,559,707.52/21,914.30
  6. Step 6: Final answer
    x = 18,826.05

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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.