Home / 20,583.52-28,400.88-12,202.72

Finding the Fourth Proportional to 20,583.52, 28,400.88 and 12,202.72

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Solution

The fourth proportional to 20,583.52, 28,400.88 and 12,202.72 is: 16,837.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.52 : 28,400.88 = 12,202.72 : x
  2. Step 2: Convert to fraction form
    20,583.52/28,400.88 = 12,202.72/x
  3. Step 3: Cross multiply
    20,583.52x = 28,400.88 × 12,202.72
  4. Step 4: Simplify right side
    20,583.52x = 346,567,986.39
  5. Step 5: Solve for x
    x = 346,567,986.39/20,583.52
  6. Step 6: Final answer
    x = 16,837.16

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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.