Home / 38,556.12-53,200.50-21,560.70

Finding the Fourth Proportional to 38,556.12, 53,200.50 and 21,560.70

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Solution

The fourth proportional to 38,556.12, 53,200.50 and 21,560.70 is: 29,749.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,556.12 : 53,200.50 = 21,560.70 : x
  2. Step 2: Convert to fraction form
    38,556.12/53,200.50 = 21,560.70/x
  3. Step 3: Cross multiply
    38,556.12x = 53,200.50 × 21,560.70
  4. Step 4: Simplify right side
    38,556.12x = 1,147,040,020.35
  5. Step 5: Solve for x
    x = 1,147,040,020.35/38,556.12
  6. Step 6: Final answer
    x = 29,749.88

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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.