Home / 35,491.21-48,977.77-20,384.85

Finding the Fourth Proportional to 35,491.21, 48,977.77 and 20,384.85

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Solution

The fourth proportional to 35,491.21, 48,977.77 and 20,384.85 is: 28,131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,491.21 : 48,977.77 = 20,384.85 : x
  2. Step 2: Convert to fraction form
    35,491.21/48,977.77 = 20,384.85/x
  3. Step 3: Cross multiply
    35,491.21x = 48,977.77 × 20,384.85
  4. Step 4: Simplify right side
    35,491.21x = 998,404,494.78
  5. Step 5: Solve for x
    x = 998,404,494.78/35,491.21
  6. Step 6: Final answer
    x = 28,131.04

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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.