Home / 31,987.68-47,982.96-9,799.44

Finding the Fourth Proportional to 31,987.68, 47,982.96 and 9,799.44

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Solution

The fourth proportional to 31,987.68, 47,982.96 and 9,799.44 is: 14,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,987.68 : 47,982.96 = 9,799.44 : x
  2. Step 2: Convert to fraction form
    31,987.68/47,982.96 = 9,799.44/x
  3. Step 3: Cross multiply
    31,987.68x = 47,982.96 × 9,799.44
  4. Step 4: Simplify right side
    31,987.68x = 470,206,137.54
  5. Step 5: Solve for x
    x = 470,206,137.54/31,987.68
  6. Step 6: Final answer
    x = 14,699.60

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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.