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Finding the Fourth Proportional to 14,452.48, 19,950 and 12,428

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Solution

The fourth proportional to 14,452.48, 19,950 and 12,428 is: 17,155.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,452.48 : 19,950 = 12,428 : x
  2. Step 2: Convert to fraction form
    14,452.48/19,950 = 12,428/x
  3. Step 3: Cross multiply
    14,452.48x = 19,950 × 12,428
  4. Step 4: Simplify right side
    14,452.48x = 247,938,600
  5. Step 5: Solve for x
    x = 247,938,600/14,452.48
  6. Step 6: Final answer
    x = 17,155.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.