Home / 20,727.08-31,067.40-8,237.60

Finding the Fourth Proportional to 20,727.08, 31,067.40 and 8,237.60

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Solution

The fourth proportional to 20,727.08, 31,067.40 and 8,237.60 is: 12,347.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.08 : 31,067.40 = 8,237.60 : x
  2. Step 2: Convert to fraction form
    20,727.08/31,067.40 = 8,237.60/x
  3. Step 3: Cross multiply
    20,727.08x = 31,067.40 × 8,237.60
  4. Step 4: Simplify right side
    20,727.08x = 255,920,814.24
  5. Step 5: Solve for x
    x = 255,920,814.24/20,727.08
  6. Step 6: Final answer
    x = 12,347.17

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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.