Home / 31,246.31-43,113.23-18,503.49

Finding the Fourth Proportional to 31,246.31, 43,113.23 and 18,503.49

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Solution

The fourth proportional to 31,246.31, 43,113.23 and 18,503.49 is: 25,530.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,246.31 : 43,113.23 = 18,503.49 : x
  2. Step 2: Convert to fraction form
    31,246.31/43,113.23 = 18,503.49/x
  3. Step 3: Cross multiply
    31,246.31x = 43,113.23 × 18,503.49
  4. Step 4: Simplify right side
    31,246.31x = 797,745,266.43
  5. Step 5: Solve for x
    x = 797,745,266.43/31,246.31
  6. Step 6: Final answer
    x = 25,530.87

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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.