Home / 38,198.16-52,717.44-21,431.28

Finding the Fourth Proportional to 38,198.16, 52,717.44 and 21,431.28

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Solution

The fourth proportional to 38,198.16, 52,717.44 and 21,431.28 is: 29,577.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,198.16 : 52,717.44 = 21,431.28 : x
  2. Step 2: Convert to fraction form
    38,198.16/52,717.44 = 21,431.28/x
  3. Step 3: Cross multiply
    38,198.16x = 52,717.44 × 21,431.28
  4. Step 4: Simplify right side
    38,198.16x = 1,129,802,217.52
  5. Step 5: Solve for x
    x = 1,129,802,217.52/38,198.16
  6. Step 6: Final answer
    x = 29,577.40

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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.