Home / 30,580.20-42,204.58-18,006.12

Finding the Fourth Proportional to 30,580.20, 42,204.58 and 18,006.12

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Solution

The fourth proportional to 30,580.20, 42,204.58 and 18,006.12 is: 24,850.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,580.20 : 42,204.58 = 18,006.12 : x
  2. Step 2: Convert to fraction form
    30,580.20/42,204.58 = 18,006.12/x
  3. Step 3: Cross multiply
    30,580.20x = 42,204.58 × 18,006.12
  4. Step 4: Simplify right side
    30,580.20x = 759,940,732.03
  5. Step 5: Solve for x
    x = 759,940,732.03/30,580.20
  6. Step 6: Final answer
    x = 24,850.74

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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.