Home / 35,212.50-48,578.40-21,760.43

Finding the Fourth Proportional to 35,212.50, 48,578.40 and 21,760.43

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Solution

The fourth proportional to 35,212.50, 48,578.40 and 21,760.43 is: 30,020.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,212.50 : 48,578.40 = 21,760.43 : x
  2. Step 2: Convert to fraction form
    35,212.50/48,578.40 = 21,760.43/x
  3. Step 3: Cross multiply
    35,212.50x = 48,578.40 × 21,760.43
  4. Step 4: Simplify right side
    35,212.50x = 1,057,086,629.82
  5. Step 5: Solve for x
    x = 1,057,086,629.82/35,212.50
  6. Step 6: Final answer
    x = 30,020.21

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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.