Home / 30,871.12-42,684.96-29,452

Finding the Fourth Proportional to 30,871.12, 42,684.96 and 29,452

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Solution

The fourth proportional to 30,871.12, 42,684.96 and 29,452 is: 40,722.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,871.12 : 42,684.96 = 29,452 : x
  2. Step 2: Convert to fraction form
    30,871.12/42,684.96 = 29,452/x
  3. Step 3: Cross multiply
    30,871.12x = 42,684.96 × 29,452
  4. Step 4: Simplify right side
    30,871.12x = 1,257,157,441.92
  5. Step 5: Solve for x
    x = 1,257,157,441.92/30,871.12
  6. Step 6: Final answer
    x = 40,722.77

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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.