Home / 17,127.90-25,655.40-14,211.90

Finding the Fourth Proportional to 17,127.90, 25,655.40 and 14,211.90

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Solution

The fourth proportional to 17,127.90, 25,655.40 and 14,211.90 is: 21,287.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,127.90 : 25,655.40 = 14,211.90 : x
  2. Step 2: Convert to fraction form
    17,127.90/25,655.40 = 14,211.90/x
  3. Step 3: Cross multiply
    17,127.90x = 25,655.40 × 14,211.90
  4. Step 4: Simplify right side
    17,127.90x = 364,611,979.26
  5. Step 5: Solve for x
    x = 364,611,979.26/17,127.90
  6. Step 6: Final answer
    x = 21,287.61

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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.