Home / 20,841.47-31,268.06-8,370.25

Finding the Fourth Proportional to 20,841.47, 31,268.06 and 8,370.25

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Solution

The fourth proportional to 20,841.47, 31,268.06 and 8,370.25 is: 12,557.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.47 : 31,268.06 = 8,370.25 : x
  2. Step 2: Convert to fraction form
    20,841.47/31,268.06 = 8,370.25/x
  3. Step 3: Cross multiply
    20,841.47x = 31,268.06 × 8,370.25
  4. Step 4: Simplify right side
    20,841.47x = 261,721,390.58
  5. Step 5: Solve for x
    x = 261,721,390.58/20,841.47
  6. Step 6: Final answer
    x = 12,557.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.