Home / 28,619.10-39,492.97-15,871.27

Finding the Fourth Proportional to 28,619.10, 39,492.97 and 15,871.27

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Solution

The fourth proportional to 28,619.10, 39,492.97 and 15,871.27 is: 21,901.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,619.10 : 39,492.97 = 15,871.27 : x
  2. Step 2: Convert to fraction form
    28,619.10/39,492.97 = 15,871.27/x
  3. Step 3: Cross multiply
    28,619.10x = 39,492.97 × 15,871.27
  4. Step 4: Simplify right side
    28,619.10x = 626,803,589.97
  5. Step 5: Solve for x
    x = 626,803,589.97/28,619.10
  6. Step 6: Final answer
    x = 21,901.59

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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.