Home / 31,750.92-43,808.63-18,135.50

Finding the Fourth Proportional to 31,750.92, 43,808.63 and 18,135.50

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Solution

The fourth proportional to 31,750.92, 43,808.63 and 18,135.50 is: 25,022.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,750.92 : 43,808.63 = 18,135.50 : x
  2. Step 2: Convert to fraction form
    31,750.92/43,808.63 = 18,135.50/x
  3. Step 3: Cross multiply
    31,750.92x = 43,808.63 × 18,135.50
  4. Step 4: Simplify right side
    31,750.92x = 794,491,099.64
  5. Step 5: Solve for x
    x = 794,491,099.64/31,750.92
  6. Step 6: Final answer
    x = 25,022.62

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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.