Home / 29,302.94-40,438.04-15,874.16

Finding the Fourth Proportional to 29,302.94, 40,438.04 and 15,874.16

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Solution

The fourth proportional to 29,302.94, 40,438.04 and 15,874.16 is: 21,906.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,302.94 : 40,438.04 = 15,874.16 : x
  2. Step 2: Convert to fraction form
    29,302.94/40,438.04 = 15,874.16/x
  3. Step 3: Cross multiply
    29,302.94x = 40,438.04 × 15,874.16
  4. Step 4: Simplify right side
    29,302.94x = 641,919,635.49
  5. Step 5: Solve for x
    x = 641,919,635.49/29,302.94
  6. Step 6: Final answer
    x = 21,906.32

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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.