Home / 19,101.14-28,669.95-11,720.02

Finding the Fourth Proportional to 19,101.14, 28,669.95 and 11,720.02

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Solution

The fourth proportional to 19,101.14, 28,669.95 and 11,720.02 is: 17,591.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.14 : 28,669.95 = 11,720.02 : x
  2. Step 2: Convert to fraction form
    19,101.14/28,669.95 = 11,720.02/x
  3. Step 3: Cross multiply
    19,101.14x = 28,669.95 × 11,720.02
  4. Step 4: Simplify right side
    19,101.14x = 336,012,185.45
  5. Step 5: Solve for x
    x = 336,012,185.45/19,101.14
  6. Step 6: Final answer
    x = 17,591.21

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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.