Home / 39,782.73-59,661.33-13,122.73

Finding the Fourth Proportional to 39,782.73, 59,661.33 and 13,122.73

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Solution

The fourth proportional to 39,782.73, 59,661.33 and 13,122.73 is: 19,679.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,782.73 : 59,661.33 = 13,122.73 : x
  2. Step 2: Convert to fraction form
    39,782.73/59,661.33 = 13,122.73/x
  3. Step 3: Cross multiply
    39,782.73x = 59,661.33 × 13,122.73
  4. Step 4: Simplify right side
    39,782.73x = 782,919,525.03
  5. Step 5: Solve for x
    x = 782,919,525.03/39,782.73
  6. Step 6: Final answer
    x = 19,679.88

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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.