Home / 28,680.86-39,575.30-16,103.18

Finding the Fourth Proportional to 28,680.86, 39,575.30 and 16,103.18

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Solution

The fourth proportional to 28,680.86, 39,575.30 and 16,103.18 is: 22,219.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680.86 : 39,575.30 = 16,103.18 : x
  2. Step 2: Convert to fraction form
    28,680.86/39,575.30 = 16,103.18/x
  3. Step 3: Cross multiply
    28,680.86x = 39,575.30 × 16,103.18
  4. Step 4: Simplify right side
    28,680.86x = 637,288,179.45
  5. Step 5: Solve for x
    x = 637,288,179.45/28,680.86
  6. Step 6: Final answer
    x = 22,219.98

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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.