Home / 28,621.67-42,877.15-16,103.66

Finding the Fourth Proportional to 28,621.67, 42,877.15 and 16,103.66

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Solution

The fourth proportional to 28,621.67, 42,877.15 and 16,103.66 is: 24,124.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621.67 : 42,877.15 = 16,103.66 : x
  2. Step 2: Convert to fraction form
    28,621.67/42,877.15 = 16,103.66/x
  3. Step 3: Cross multiply
    28,621.67x = 42,877.15 × 16,103.66
  4. Step 4: Simplify right side
    28,621.67x = 690,478,790.72
  5. Step 5: Solve for x
    x = 690,478,790.72/28,621.67
  6. Step 6: Final answer
    x = 24,124.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.