Home / 28,309.03-39,063.33-16,979.02

Finding the Fourth Proportional to 28,309.03, 39,063.33 and 16,979.02

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Solution

The fourth proportional to 28,309.03, 39,063.33 and 16,979.02 is: 23,429.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,309.03 : 39,063.33 = 16,979.02 : x
  2. Step 2: Convert to fraction form
    28,309.03/39,063.33 = 16,979.02/x
  3. Step 3: Cross multiply
    28,309.03x = 39,063.33 × 16,979.02
  4. Step 4: Simplify right side
    28,309.03x = 663,256,963.68
  5. Step 5: Solve for x
    x = 663,256,963.68/28,309.03
  6. Step 6: Final answer
    x = 23,429.17

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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.