Home / 20,841.39-28,760.94-11,281.23

Finding the Fourth Proportional to 20,841.39, 28,760.94 and 11,281.23

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Solution

The fourth proportional to 20,841.39, 28,760.94 and 11,281.23 is: 15,568.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.39 : 28,760.94 = 11,281.23 : x
  2. Step 2: Convert to fraction form
    20,841.39/28,760.94 = 11,281.23/x
  3. Step 3: Cross multiply
    20,841.39x = 28,760.94 × 11,281.23
  4. Step 4: Simplify right side
    20,841.39x = 324,458,779.16
  5. Step 5: Solve for x
    x = 324,458,779.16/20,841.39
  6. Step 6: Final answer
    x = 15,568.00

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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.