Home / 20,539.74-28,346.15-11,583.97

Finding the Fourth Proportional to 20,539.74, 28,346.15 and 11,583.97

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Solution

The fourth proportional to 20,539.74, 28,346.15 and 11,583.97 is: 15,986.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539.74 : 28,346.15 = 11,583.97 : x
  2. Step 2: Convert to fraction form
    20,539.74/28,346.15 = 11,583.97/x
  3. Step 3: Cross multiply
    20,539.74x = 28,346.15 × 11,583.97
  4. Step 4: Simplify right side
    20,539.74x = 328,360,951.22
  5. Step 5: Solve for x
    x = 328,360,951.22/20,539.74
  6. Step 6: Final answer
    x = 15,986.62

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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.