Home / 28,688.13-39,593.33-16,112.88

Finding the Fourth Proportional to 28,688.13, 39,593.33 and 16,112.88

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Solution

The fourth proportional to 28,688.13, 39,593.33 and 16,112.88 is: 22,237.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688.13 : 39,593.33 = 16,112.88 : x
  2. Step 2: Convert to fraction form
    28,688.13/39,593.33 = 16,112.88/x
  3. Step 3: Cross multiply
    28,688.13x = 39,593.33 × 16,112.88
  4. Step 4: Simplify right side
    28,688.13x = 637,962,296.56
  5. Step 5: Solve for x
    x = 637,962,296.56/28,688.13
  6. Step 6: Final answer
    x = 22,237.85

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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.