Home / 21,822.36-32,711.64-19,197.96

Finding the Fourth Proportional to 21,822.36, 32,711.64 and 19,197.96

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Solution

The fourth proportional to 21,822.36, 32,711.64 and 19,197.96 is: 28,777.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,822.36 : 32,711.64 = 19,197.96 : x
  2. Step 2: Convert to fraction form
    21,822.36/32,711.64 = 19,197.96/x
  3. Step 3: Cross multiply
    21,822.36x = 32,711.64 × 19,197.96
  4. Step 4: Simplify right side
    21,822.36x = 627,996,756.25
  5. Step 5: Solve for x
    x = 627,996,756.25/21,822.36
  6. Step 6: Final answer
    x = 28,777.67

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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.