Home / 20,723.34-28,597.41-11,291.97

Finding the Fourth Proportional to 20,723.34, 28,597.41 and 11,291.97

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Solution

The fourth proportional to 20,723.34, 28,597.41 and 11,291.97 is: 15,582.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.34 : 28,597.41 = 11,291.97 : x
  2. Step 2: Convert to fraction form
    20,723.34/28,597.41 = 11,291.97/x
  3. Step 3: Cross multiply
    20,723.34x = 28,597.41 × 11,291.97
  4. Step 4: Simplify right side
    20,723.34x = 322,921,095.80
  5. Step 5: Solve for x
    x = 322,921,095.80/20,723.34
  6. Step 6: Final answer
    x = 15,582.48

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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.