Home / 43,009.97-64,512.39-13,423.64

Finding the Fourth Proportional to 43,009.97, 64,512.39 and 13,423.64

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Solution

The fourth proportional to 43,009.97, 64,512.39 and 13,423.64 is: 20,134.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,009.97 : 64,512.39 = 13,423.64 : x
  2. Step 2: Convert to fraction form
    43,009.97/64,512.39 = 13,423.64/x
  3. Step 3: Cross multiply
    43,009.97x = 64,512.39 × 13,423.64
  4. Step 4: Simplify right side
    43,009.97x = 865,991,098.90
  5. Step 5: Solve for x
    x = 865,991,098.90/43,009.97
  6. Step 6: Final answer
    x = 20,134.66

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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.