Home / 43,305.45-64,960.20-13,725.60

Finding the Fourth Proportional to 43,305.45, 64,960.20 and 13,725.60

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Solution

The fourth proportional to 43,305.45, 64,960.20 and 13,725.60 is: 20,589.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,305.45 : 64,960.20 = 13,725.60 : x
  2. Step 2: Convert to fraction form
    43,305.45/64,960.20 = 13,725.60/x
  3. Step 3: Cross multiply
    43,305.45x = 64,960.20 × 13,725.60
  4. Step 4: Simplify right side
    43,305.45x = 891,617,721.12
  5. Step 5: Solve for x
    x = 891,617,721.12/43,305.45
  6. Step 6: Final answer
    x = 20,589.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.