Home / 34,511.66-47,629.13-20,361.74

Finding the Fourth Proportional to 34,511.66, 47,629.13 and 20,361.74

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Solution

The fourth proportional to 34,511.66, 47,629.13 and 20,361.74 is: 28,100.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,511.66 : 47,629.13 = 20,361.74 : x
  2. Step 2: Convert to fraction form
    34,511.66/47,629.13 = 20,361.74/x
  3. Step 3: Cross multiply
    34,511.66x = 47,629.13 × 20,361.74
  4. Step 4: Simplify right side
    34,511.66x = 969,811,961.49
  5. Step 5: Solve for x
    x = 969,811,961.49/34,511.66
  6. Step 6: Final answer
    x = 28,100.99

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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.