Home / 19,915.66-29,798.43-11,880.73

Finding the Fourth Proportional to 19,915.66, 29,798.43 and 11,880.73

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Solution

The fourth proportional to 19,915.66, 29,798.43 and 11,880.73 is: 17,776.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.66 : 29,798.43 = 11,880.73 : x
  2. Step 2: Convert to fraction form
    19,915.66/29,798.43 = 11,880.73/x
  3. Step 3: Cross multiply
    19,915.66x = 29,798.43 × 11,880.73
  4. Step 4: Simplify right side
    19,915.66x = 354,027,101.25
  5. Step 5: Solve for x
    x = 354,027,101.25/19,915.66
  6. Step 6: Final answer
    x = 17,776.32

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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.