Home / 20,944.38-28,894.98-11,987.10

Finding the Fourth Proportional to 20,944.38, 28,894.98 and 11,987.10

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Solution

The fourth proportional to 20,944.38, 28,894.98 and 11,987.10 is: 16,537.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.38 : 28,894.98 = 11,987.10 : x
  2. Step 2: Convert to fraction form
    20,944.38/28,894.98 = 11,987.10/x
  3. Step 3: Cross multiply
    20,944.38x = 28,894.98 × 11,987.10
  4. Step 4: Simplify right side
    20,944.38x = 346,367,014.76
  5. Step 5: Solve for x
    x = 346,367,014.76/20,944.38
  6. Step 6: Final answer
    x = 16,537.47

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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.