Home / 21,450.24-32,188-8,969.32

Finding the Fourth Proportional to 21,450.24, 32,188 and 8,969.32

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Solution

The fourth proportional to 21,450.24, 32,188 and 8,969.32 is: 13,459.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450.24 : 32,188 = 8,969.32 : x
  2. Step 2: Convert to fraction form
    21,450.24/32,188 = 8,969.32/x
  3. Step 3: Cross multiply
    21,450.24x = 32,188 × 8,969.32
  4. Step 4: Simplify right side
    21,450.24x = 288,704,472.16
  5. Step 5: Solve for x
    x = 288,704,472.16/21,450.24
  6. Step 6: Final answer
    x = 13,459.27

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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.