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Finding the Fourth Proportional to 21,491.48, 32,230.99 and 7,450.94

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Solution

The fourth proportional to 21,491.48, 32,230.99 and 7,450.94 is: 11,174.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,491.48 : 32,230.99 = 7,450.94 : x
  2. Step 2: Convert to fraction form
    21,491.48/32,230.99 = 7,450.94/x
  3. Step 3: Cross multiply
    21,491.48x = 32,230.99 × 7,450.94
  4. Step 4: Simplify right side
    21,491.48x = 240,151,172.63
  5. Step 5: Solve for x
    x = 240,151,172.63/21,491.48
  6. Step 6: Final answer
    x = 11,174.25

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1.5x scale

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.