Home / 28,735.74-39,660.77-17,985.60

Finding the Fourth Proportional to 28,735.74, 39,660.77 and 17,985.60

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Solution

The fourth proportional to 28,735.74, 39,660.77 and 17,985.60 is: 24,823.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,735.74 : 39,660.77 = 17,985.60 : x
  2. Step 2: Convert to fraction form
    28,735.74/39,660.77 = 17,985.60/x
  3. Step 3: Cross multiply
    28,735.74x = 39,660.77 × 17,985.60
  4. Step 4: Simplify right side
    28,735.74x = 713,322,654.98
  5. Step 5: Solve for x
    x = 713,322,654.98/28,735.74
  6. Step 6: Final answer
    x = 24,823.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.