Home / 39,780.22-59,665.88-10,198.75

Finding the Fourth Proportional to 39,780.22, 59,665.88 and 10,198.75

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Solution

The fourth proportional to 39,780.22, 59,665.88 and 10,198.75 is: 15,296.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,780.22 : 59,665.88 = 10,198.75 : x
  2. Step 2: Convert to fraction form
    39,780.22/59,665.88 = 10,198.75/x
  3. Step 3: Cross multiply
    39,780.22x = 59,665.88 × 10,198.75
  4. Step 4: Simplify right side
    39,780.22x = 608,517,530.07
  5. Step 5: Solve for x
    x = 608,517,530.07/39,780.22
  6. Step 6: Final answer
    x = 15,296.99

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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.