Home / 28,659.28-42,996.38-10,890.26

Finding the Fourth Proportional to 28,659.28, 42,996.38 and 10,890.26

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Solution

The fourth proportional to 28,659.28, 42,996.38 and 10,890.26 is: 16,338.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,659.28 : 42,996.38 = 10,890.26 : x
  2. Step 2: Convert to fraction form
    28,659.28/42,996.38 = 10,890.26/x
  3. Step 3: Cross multiply
    28,659.28x = 42,996.38 × 10,890.26
  4. Step 4: Simplify right side
    28,659.28x = 468,241,542.28
  5. Step 5: Solve for x
    x = 468,241,542.28/28,659.28
  6. Step 6: Final answer
    x = 16,338.22

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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.