Home / 30,751.70-42,439.92-17,325.59

Finding the Fourth Proportional to 30,751.70, 42,439.92 and 17,325.59

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Solution

The fourth proportional to 30,751.70, 42,439.92 and 17,325.59 is: 23,910.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,751.70 : 42,439.92 = 17,325.59 : x
  2. Step 2: Convert to fraction form
    30,751.70/42,439.92 = 17,325.59/x
  3. Step 3: Cross multiply
    30,751.70x = 42,439.92 × 17,325.59
  4. Step 4: Simplify right side
    30,751.70x = 735,296,653.55
  5. Step 5: Solve for x
    x = 735,296,653.55/30,751.70
  6. Step 6: Final answer
    x = 23,910.76

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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.