Home / 43,104.14-64,660.72-11,939.40

Finding the Fourth Proportional to 43,104.14, 64,660.72 and 11,939.40

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Solution

The fourth proportional to 43,104.14, 64,660.72 and 11,939.40 is: 17,910.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,104.14 : 64,660.72 = 11,939.40 : x
  2. Step 2: Convert to fraction form
    43,104.14/64,660.72 = 11,939.40/x
  3. Step 3: Cross multiply
    43,104.14x = 64,660.72 × 11,939.40
  4. Step 4: Simplify right side
    43,104.14x = 772,010,200.37
  5. Step 5: Solve for x
    x = 772,010,200.37/43,104.14
  6. Step 6: Final answer
    x = 17,910.35

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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.