Home / 20,723.24-28,598.06-11,291.80

Finding the Fourth Proportional to 20,723.24, 28,598.06 and 11,291.80

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Solution

The fourth proportional to 20,723.24, 28,598.06 and 11,291.80 is: 15,582.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.24 : 28,598.06 = 11,291.80 : x
  2. Step 2: Convert to fraction form
    20,723.24/28,598.06 = 11,291.80/x
  3. Step 3: Cross multiply
    20,723.24x = 28,598.06 × 11,291.80
  4. Step 4: Simplify right side
    20,723.24x = 322,923,573.91
  5. Step 5: Solve for x
    x = 322,923,573.91/20,723.24
  6. Step 6: Final answer
    x = 15,582.68

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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.