Home / 29,310.94-40,438.47-18,705.34

Finding the Fourth Proportional to 29,310.94, 40,438.47 and 18,705.34

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Solution

The fourth proportional to 29,310.94, 40,438.47 and 18,705.34 is: 25,806.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,310.94 : 40,438.47 = 18,705.34 : x
  2. Step 2: Convert to fraction form
    29,310.94/40,438.47 = 18,705.34/x
  3. Step 3: Cross multiply
    29,310.94x = 40,438.47 × 18,705.34
  4. Step 4: Simplify right side
    29,310.94x = 756,415,330.43
  5. Step 5: Solve for x
    x = 756,415,330.43/29,310.94
  6. Step 6: Final answer
    x = 25,806.59

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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.