Home / 21,087.04-29,099.84-11,655.44

Finding the Fourth Proportional to 21,087.04, 29,099.84 and 11,655.44

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Solution

The fourth proportional to 21,087.04, 29,099.84 and 11,655.44 is: 16,084.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,087.04 : 29,099.84 = 11,655.44 : x
  2. Step 2: Convert to fraction form
    21,087.04/29,099.84 = 11,655.44/x
  3. Step 3: Cross multiply
    21,087.04x = 29,099.84 × 11,655.44
  4. Step 4: Simplify right side
    21,087.04x = 339,171,439.13
  5. Step 5: Solve for x
    x = 339,171,439.13/21,087.04
  6. Step 6: Final answer
    x = 16,084.36

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1.5x scale

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.