Home / 28,988.14-39,989.01-17,043.88

Finding the Fourth Proportional to 28,988.14, 39,989.01 and 17,043.88

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Solution

The fourth proportional to 28,988.14, 39,989.01 and 17,043.88 is: 23,511.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.14 : 39,989.01 = 17,043.88 : x
  2. Step 2: Convert to fraction form
    28,988.14/39,989.01 = 17,043.88/x
  3. Step 3: Cross multiply
    28,988.14x = 39,989.01 × 17,043.88
  4. Step 4: Simplify right side
    28,988.14x = 681,567,887.76
  5. Step 5: Solve for x
    x = 681,567,887.76/28,988.14
  6. Step 6: Final answer
    x = 23,511.96

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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.