Home / 19,519.82-29,279.66-4,728.72

Finding the Fourth Proportional to 19,519.82, 29,279.66 and 4,728.72

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Solution

The fourth proportional to 19,519.82, 29,279.66 and 4,728.72 is: 7,093.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,519.82 : 29,279.66 = 4,728.72 : x
  2. Step 2: Convert to fraction form
    19,519.82/29,279.66 = 4,728.72/x
  3. Step 3: Cross multiply
    19,519.82x = 29,279.66 × 4,728.72
  4. Step 4: Simplify right side
    19,519.82x = 138,455,313.84
  5. Step 5: Solve for x
    x = 138,455,313.84/19,519.82
  6. Step 6: Final answer
    x = 7,093.06

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1.5x scale

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.