Home / 20,708.41-28,577.61-11,276.98

Finding the Fourth Proportional to 20,708.41, 28,577.61 and 11,276.98

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Solution

The fourth proportional to 20,708.41, 28,577.61 and 11,276.98 is: 15,562.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708.41 : 28,577.61 = 11,276.98 : x
  2. Step 2: Convert to fraction form
    20,708.41/28,577.61 = 11,276.98/x
  3. Step 3: Cross multiply
    20,708.41x = 28,577.61 × 11,276.98
  4. Step 4: Simplify right side
    20,708.41x = 322,269,136.42
  5. Step 5: Solve for x
    x = 322,269,136.42/20,708.41
  6. Step 6: Final answer
    x = 15,562.23

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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.