Home / 38,896.48-53,676.84-21,900.75

Finding the Fourth Proportional to 38,896.48, 53,676.84 and 21,900.75

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Solution

The fourth proportional to 38,896.48, 53,676.84 and 21,900.75 is: 30,222.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,896.48 : 53,676.84 = 21,900.75 : x
  2. Step 2: Convert to fraction form
    38,896.48/53,676.84 = 21,900.75/x
  3. Step 3: Cross multiply
    38,896.48x = 53,676.84 × 21,900.75
  4. Step 4: Simplify right side
    38,896.48x = 1,175,563,294.97
  5. Step 5: Solve for x
    x = 1,175,563,294.97/38,896.48
  6. Step 6: Final answer
    x = 30,222.87

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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.