Home / 20,723.10-28,599.93-11,771.16

Finding the Fourth Proportional to 20,723.10, 28,599.93 and 11,771.16

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Solution

The fourth proportional to 20,723.10, 28,599.93 and 11,771.16 is: 16,245.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.10 : 28,599.93 = 11,771.16 : x
  2. Step 2: Convert to fraction form
    20,723.10/28,599.93 = 11,771.16/x
  3. Step 3: Cross multiply
    20,723.10x = 28,599.93 × 11,771.16
  4. Step 4: Simplify right side
    20,723.10x = 336,654,352.02
  5. Step 5: Solve for x
    x = 336,654,352.02/20,723.10
  6. Step 6: Final answer
    x = 16,245.37

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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.