Home / 20,977.14-28,948.44-12,593.64

Finding the Fourth Proportional to 20,977.14, 28,948.44 and 12,593.64

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Solution

The fourth proportional to 20,977.14, 28,948.44 and 12,593.64 is: 17,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,977.14 : 28,948.44 = 12,593.64 : x
  2. Step 2: Convert to fraction form
    20,977.14/28,948.44 = 12,593.64/x
  3. Step 3: Cross multiply
    20,977.14x = 28,948.44 × 12,593.64
  4. Step 4: Simplify right side
    20,977.14x = 364,566,231.92
  5. Step 5: Solve for x
    x = 364,566,231.92/20,977.14
  6. Step 6: Final answer
    x = 17,379.22

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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.