Home / 28,272.48-39,016.26-15,698.04

Finding the Fourth Proportional to 28,272.48, 39,016.26 and 15,698.04

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Solution

The fourth proportional to 28,272.48, 39,016.26 and 15,698.04 is: 21,663.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,272.48 : 39,016.26 = 15,698.04 : x
  2. Step 2: Convert to fraction form
    28,272.48/39,016.26 = 15,698.04/x
  3. Step 3: Cross multiply
    28,272.48x = 39,016.26 × 15,698.04
  4. Step 4: Simplify right side
    28,272.48x = 612,478,810.13
  5. Step 5: Solve for x
    x = 612,478,810.13/28,272.48
  6. Step 6: Final answer
    x = 21,663.43

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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.