Home / 35,616.80-49,149.75-20,510

Finding the Fourth Proportional to 35,616.80, 49,149.75 and 20,510

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Solution

The fourth proportional to 35,616.80, 49,149.75 and 20,510 is: 28,302.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,616.80 : 49,149.75 = 20,510 : x
  2. Step 2: Convert to fraction form
    35,616.80/49,149.75 = 20,510/x
  3. Step 3: Cross multiply
    35,616.80x = 49,149.75 × 20,510
  4. Step 4: Simplify right side
    35,616.80x = 1,008,061,372.50
  5. Step 5: Solve for x
    x = 1,008,061,372.50/35,616.80
  6. Step 6: Final answer
    x = 28,302.97

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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.