Home / 31,313.12-43,211.21-17,884.09

Finding the Fourth Proportional to 31,313.12, 43,211.21 and 17,884.09

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Solution

The fourth proportional to 31,313.12, 43,211.21 and 17,884.09 is: 24,679.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,313.12 : 43,211.21 = 17,884.09 : x
  2. Step 2: Convert to fraction form
    31,313.12/43,211.21 = 17,884.09/x
  3. Step 3: Cross multiply
    31,313.12x = 43,211.21 × 17,884.09
  4. Step 4: Simplify right side
    31,313.12x = 772,793,133.24
  5. Step 5: Solve for x
    x = 772,793,133.24/31,313.12
  6. Step 6: Final answer
    x = 24,679.54

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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.