Home / 29,520.64-40,730.24-16,940.80

Finding the Fourth Proportional to 29,520.64, 40,730.24 and 16,940.80

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Solution

The fourth proportional to 29,520.64, 40,730.24 and 16,940.80 is: 23,373.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,520.64 : 40,730.24 = 16,940.80 : x
  2. Step 2: Convert to fraction form
    29,520.64/40,730.24 = 16,940.80/x
  3. Step 3: Cross multiply
    29,520.64x = 40,730.24 × 16,940.80
  4. Step 4: Simplify right side
    29,520.64x = 690,002,849.79
  5. Step 5: Solve for x
    x = 690,002,849.79/29,520.64
  6. Step 6: Final answer
    x = 23,373.57

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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.