Home / 21,935.28-32,919.93-8,788.98

Finding the Fourth Proportional to 21,935.28, 32,919.93 and 8,788.98

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Solution

The fourth proportional to 21,935.28, 32,919.93 and 8,788.98 is: 13,190.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.28 : 32,919.93 = 8,788.98 : x
  2. Step 2: Convert to fraction form
    21,935.28/32,919.93 = 8,788.98/x
  3. Step 3: Cross multiply
    21,935.28x = 32,919.93 × 8,788.98
  4. Step 4: Simplify right side
    21,935.28x = 289,332,606.37
  5. Step 5: Solve for x
    x = 289,332,606.37/21,935.28
  6. Step 6: Final answer
    x = 13,190.29

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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.