Home / 38,703.82-53,410.58-21,708.10

Finding the Fourth Proportional to 38,703.82, 53,410.58 and 21,708.10

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Solution

The fourth proportional to 38,703.82, 53,410.58 and 21,708.10 is: 29,956.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,703.82 : 53,410.58 = 21,708.10 : x
  2. Step 2: Convert to fraction form
    38,703.82/53,410.58 = 21,708.10/x
  3. Step 3: Cross multiply
    38,703.82x = 53,410.58 × 21,708.10
  4. Step 4: Simplify right side
    38,703.82x = 1,159,442,211.70
  5. Step 5: Solve for x
    x = 1,159,442,211.70/38,703.82
  6. Step 6: Final answer
    x = 29,956.79

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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.