Home / 30,591.92-42,221.58-17,168.60

Finding the Fourth Proportional to 30,591.92, 42,221.58 and 17,168.60

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Solution

The fourth proportional to 30,591.92, 42,221.58 and 17,168.60 is: 23,695.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,591.92 : 42,221.58 = 17,168.60 : x
  2. Step 2: Convert to fraction form
    30,591.92/42,221.58 = 17,168.60/x
  3. Step 3: Cross multiply
    30,591.92x = 42,221.58 × 17,168.60
  4. Step 4: Simplify right side
    30,591.92x = 724,885,418.39
  5. Step 5: Solve for x
    x = 724,885,418.39/30,591.92
  6. Step 6: Final answer
    x = 23,695.32

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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.