Home / 28,719.18-39,628.19-16,141.50

Finding the Fourth Proportional to 28,719.18, 39,628.19 and 16,141.50

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Solution

The fourth proportional to 28,719.18, 39,628.19 and 16,141.50 is: 22,272.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,719.18 : 39,628.19 = 16,141.50 : x
  2. Step 2: Convert to fraction form
    28,719.18/39,628.19 = 16,141.50/x
  3. Step 3: Cross multiply
    28,719.18x = 39,628.19 × 16,141.50
  4. Step 4: Simplify right side
    28,719.18x = 639,658,348.18
  5. Step 5: Solve for x
    x = 639,658,348.18/28,719.18
  6. Step 6: Final answer
    x = 22,272.86

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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.