Home / 30,579.73-45,885.25-13,937.60

Finding the Fourth Proportional to 30,579.73, 45,885.25 and 13,937.60

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Solution

The fourth proportional to 30,579.73, 45,885.25 and 13,937.60 is: 20,913.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579.73 : 45,885.25 = 13,937.60 : x
  2. Step 2: Convert to fraction form
    30,579.73/45,885.25 = 13,937.60/x
  3. Step 3: Cross multiply
    30,579.73x = 45,885.25 × 13,937.60
  4. Step 4: Simplify right side
    30,579.73x = 639,530,392.54
  5. Step 5: Solve for x
    x = 639,530,392.54/30,579.73
  6. Step 6: Final answer
    x = 20,913.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.