Home / 38,453.55-53,065.82-21,456.75

Finding the Fourth Proportional to 38,453.55, 53,065.82 and 21,456.75

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Solution

The fourth proportional to 38,453.55, 53,065.82 and 21,456.75 is: 29,610.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,453.55 : 53,065.82 = 21,456.75 : x
  2. Step 2: Convert to fraction form
    38,453.55/53,065.82 = 21,456.75/x
  3. Step 3: Cross multiply
    38,453.55x = 53,065.82 × 21,456.75
  4. Step 4: Simplify right side
    38,453.55x = 1,138,619,926.00
  5. Step 5: Solve for x
    x = 1,138,619,926.00/38,453.55
  6. Step 6: Final answer
    x = 29,610.27

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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.