Home / 20,841.52-28,775.22-12,346.39

Finding the Fourth Proportional to 20,841.52, 28,775.22 and 12,346.39

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Solution

The fourth proportional to 20,841.52, 28,775.22 and 12,346.39 is: 17,046.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.52 : 28,775.22 = 12,346.39 : x
  2. Step 2: Convert to fraction form
    20,841.52/28,775.22 = 12,346.39/x
  3. Step 3: Cross multiply
    20,841.52x = 28,775.22 × 12,346.39
  4. Step 4: Simplify right side
    20,841.52x = 355,270,088.46
  5. Step 5: Solve for x
    x = 355,270,088.46/20,841.52
  6. Step 6: Final answer
    x = 17,046.27

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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.