Home / 53,021.35-79,473.70-21,839.59

Finding the Fourth Proportional to 53,021.35, 79,473.70 and 21,839.59

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Solution

The fourth proportional to 53,021.35, 79,473.70 and 21,839.59 is: 32,735.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,021.35 : 79,473.70 = 21,839.59 : x
  2. Step 2: Convert to fraction form
    53,021.35/79,473.70 = 21,839.59/x
  3. Step 3: Cross multiply
    53,021.35x = 79,473.70 × 21,839.59
  4. Step 4: Simplify right side
    53,021.35x = 1,735,673,023.78
  5. Step 5: Solve for x
    x = 1,735,673,023.78/53,021.35
  6. Step 6: Final answer
    x = 32,735.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.