Home / 19,455.75-29,136.87-11,110.47

Finding the Fourth Proportional to 19,455.75, 29,136.87 and 11,110.47

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Solution

The fourth proportional to 19,455.75, 29,136.87 and 11,110.47 is: 16,639.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,455.75 : 29,136.87 = 11,110.47 : x
  2. Step 2: Convert to fraction form
    19,455.75/29,136.87 = 11,110.47/x
  3. Step 3: Cross multiply
    19,455.75x = 29,136.87 × 11,110.47
  4. Step 4: Simplify right side
    19,455.75x = 323,724,320.03
  5. Step 5: Solve for x
    x = 323,724,320.03/19,455.75
  6. Step 6: Final answer
    x = 16,639.00

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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.