Home / 20,656.69-28,508.66-12,273.19

Finding the Fourth Proportional to 20,656.69, 28,508.66 and 12,273.19

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Solution

The fourth proportional to 20,656.69, 28,508.66 and 12,273.19 is: 16,938.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656.69 : 28,508.66 = 12,273.19 : x
  2. Step 2: Convert to fraction form
    20,656.69/28,508.66 = 12,273.19/x
  3. Step 3: Cross multiply
    20,656.69x = 28,508.66 × 12,273.19
  4. Step 4: Simplify right side
    20,656.69x = 349,892,114.21
  5. Step 5: Solve for x
    x = 349,892,114.21/20,656.69
  6. Step 6: Final answer
    x = 16,938.44

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1.5x scale

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.