Home / 39,459.44-54,453.70-21,554.45

Finding the Fourth Proportional to 39,459.44, 54,453.70 and 21,554.45

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Solution

The fourth proportional to 39,459.44, 54,453.70 and 21,554.45 is: 29,744.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,459.44 : 54,453.70 = 21,554.45 : x
  2. Step 2: Convert to fraction form
    39,459.44/54,453.70 = 21,554.45/x
  3. Step 3: Cross multiply
    39,459.44x = 54,453.70 × 21,554.45
  4. Step 4: Simplify right side
    39,459.44x = 1,173,719,553.97
  5. Step 5: Solve for x
    x = 1,173,719,553.97/39,459.44
  6. Step 6: Final answer
    x = 29,744.96

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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.