Home / 39,940.39-59,900.31-11,853.80

Finding the Fourth Proportional to 39,940.39, 59,900.31 and 11,853.80

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Solution

The fourth proportional to 39,940.39, 59,900.31 and 11,853.80 is: 17,777.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,940.39 : 59,900.31 = 11,853.80 : x
  2. Step 2: Convert to fraction form
    39,940.39/59,900.31 = 11,853.80/x
  3. Step 3: Cross multiply
    39,940.39x = 59,900.31 × 11,853.80
  4. Step 4: Simplify right side
    39,940.39x = 710,045,995.18
  5. Step 5: Solve for x
    x = 710,045,995.18/39,940.39
  6. Step 6: Final answer
    x = 17,777.64

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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.