Home / 29,380.53-40,624.92-28,905.78

Finding the Fourth Proportional to 29,380.53, 40,624.92 and 28,905.78

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Solution

The fourth proportional to 29,380.53, 40,624.92 and 28,905.78 is: 39,968.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,380.53 : 40,624.92 = 28,905.78 : x
  2. Step 2: Convert to fraction form
    29,380.53/40,624.92 = 28,905.78/x
  3. Step 3: Cross multiply
    29,380.53x = 40,624.92 × 28,905.78
  4. Step 4: Simplify right side
    29,380.53x = 1,174,295,000.04
  5. Step 5: Solve for x
    x = 1,174,295,000.04/29,380.53
  6. Step 6: Final answer
    x = 39,968.48

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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.