Home / 35,254.05-48,647.49-20,143.71

Finding the Fourth Proportional to 35,254.05, 48,647.49 and 20,143.71

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Solution

The fourth proportional to 35,254.05, 48,647.49 and 20,143.71 is: 27,796.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,254.05 : 48,647.49 = 20,143.71 : x
  2. Step 2: Convert to fraction form
    35,254.05/48,647.49 = 20,143.71/x
  3. Step 3: Cross multiply
    35,254.05x = 48,647.49 × 20,143.71
  4. Step 4: Simplify right side
    35,254.05x = 979,940,930.79
  5. Step 5: Solve for x
    x = 979,940,930.79/35,254.05
  6. Step 6: Final answer
    x = 27,796.55

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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.