Home / 18,685.14-27,985.77-14,512.50

Finding the Fourth Proportional to 18,685.14, 27,985.77 and 14,512.50

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Solution

The fourth proportional to 18,685.14, 27,985.77 and 14,512.50 is: 21,736.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.14 : 27,985.77 = 14,512.50 : x
  2. Step 2: Convert to fraction form
    18,685.14/27,985.77 = 14,512.50/x
  3. Step 3: Cross multiply
    18,685.14x = 27,985.77 × 14,512.50
  4. Step 4: Simplify right side
    18,685.14x = 406,143,487.13
  5. Step 5: Solve for x
    x = 406,143,487.13/18,685.14
  6. Step 6: Final answer
    x = 21,736.18

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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.