Home / 19,616.75-29,371.20-13,699.55

Finding the Fourth Proportional to 19,616.75, 29,371.20 and 13,699.55

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Solution

The fourth proportional to 19,616.75, 29,371.20 and 13,699.55 is: 20,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,616.75 : 29,371.20 = 13,699.55 : x
  2. Step 2: Convert to fraction form
    19,616.75/29,371.20 = 13,699.55/x
  3. Step 3: Cross multiply
    19,616.75x = 29,371.20 × 13,699.55
  4. Step 4: Simplify right side
    19,616.75x = 402,372,076.10
  5. Step 5: Solve for x
    x = 402,372,076.10/19,616.75
  6. Step 6: Final answer
    x = 20,511.66

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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.