Home / 28,688.25-39,589.80-16,113

Finding the Fourth Proportional to 28,688.25, 39,589.80 and 16,113

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Solution

The fourth proportional to 28,688.25, 39,589.80 and 16,113 is: 22,235.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688.25 : 39,589.80 = 16,113 : x
  2. Step 2: Convert to fraction form
    28,688.25/39,589.80 = 16,113/x
  3. Step 3: Cross multiply
    28,688.25x = 39,589.80 × 16,113
  4. Step 4: Simplify right side
    28,688.25x = 637,910,447.40
  5. Step 5: Solve for x
    x = 637,910,447.40/28,688.25
  6. Step 6: Final answer
    x = 22,235.95

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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.