Home / 43,170.39-64,759.23-12,005.64

Finding the Fourth Proportional to 43,170.39, 64,759.23 and 12,005.64

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Solution

The fourth proportional to 43,170.39, 64,759.23 and 12,005.64 is: 18,009.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,170.39 : 64,759.23 = 12,005.64 : x
  2. Step 2: Convert to fraction form
    43,170.39/64,759.23 = 12,005.64/x
  3. Step 3: Cross multiply
    43,170.39x = 64,759.23 × 12,005.64
  4. Step 4: Simplify right side
    43,170.39x = 777,476,002.06
  5. Step 5: Solve for x
    x = 777,476,002.06/43,170.39
  6. Step 6: Final answer
    x = 18,009.47

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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.