Home / 20,211.99-27,690.55-19,454.43

Finding the Fourth Proportional to 20,211.99, 27,690.55 and 19,454.43

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Solution

The fourth proportional to 20,211.99, 27,690.55 and 19,454.43 is: 26,652.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.99 : 27,690.55 = 19,454.43 : x
  2. Step 2: Convert to fraction form
    20,211.99/27,690.55 = 19,454.43/x
  3. Step 3: Cross multiply
    20,211.99x = 27,690.55 × 19,454.43
  4. Step 4: Simplify right side
    20,211.99x = 538,703,818.00
  5. Step 5: Solve for x
    x = 538,703,818.00/20,211.99
  6. Step 6: Final answer
    x = 26,652.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.