Home / 19,086.48-28,631.64-7,081.92

Finding the Fourth Proportional to 19,086.48, 28,631.64 and 7,081.92

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Solution

The fourth proportional to 19,086.48, 28,631.64 and 7,081.92 is: 10,623.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,086.48 : 28,631.64 = 7,081.92 : x
  2. Step 2: Convert to fraction form
    19,086.48/28,631.64 = 7,081.92/x
  3. Step 3: Cross multiply
    19,086.48x = 28,631.64 × 7,081.92
  4. Step 4: Simplify right side
    19,086.48x = 202,766,983.95
  5. Step 5: Solve for x
    x = 202,766,983.95/19,086.48
  6. Step 6: Final answer
    x = 10,623.59

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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.