Home / 28,354.86-42,500.97-11,705.72

Finding the Fourth Proportional to 28,354.86, 42,500.97 and 11,705.72

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Solution

The fourth proportional to 28,354.86, 42,500.97 and 11,705.72 is: 17,545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,354.86 : 42,500.97 = 11,705.72 : x
  2. Step 2: Convert to fraction form
    28,354.86/42,500.97 = 11,705.72/x
  3. Step 3: Cross multiply
    28,354.86x = 42,500.97 × 11,705.72
  4. Step 4: Simplify right side
    28,354.86x = 497,504,242.04
  5. Step 5: Solve for x
    x = 497,504,242.04/28,354.86
  6. Step 6: Final answer
    x = 17,545.64

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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.