Home / 20,673.80-31,005.18-8,984.24

Finding the Fourth Proportional to 20,673.80, 31,005.18 and 8,984.24

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Solution

The fourth proportional to 20,673.80, 31,005.18 and 8,984.24 is: 13,473.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.80 : 31,005.18 = 8,984.24 : x
  2. Step 2: Convert to fraction form
    20,673.80/31,005.18 = 8,984.24/x
  3. Step 3: Cross multiply
    20,673.80x = 31,005.18 × 8,984.24
  4. Step 4: Simplify right side
    20,673.80x = 278,557,978.36
  5. Step 5: Solve for x
    x = 278,557,978.36/20,673.80
  6. Step 6: Final answer
    x = 13,473.96

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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.