Home / 20,504.42-28,294.98-11,551.70

Finding the Fourth Proportional to 20,504.42, 28,294.98 and 11,551.70

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Solution

The fourth proportional to 20,504.42, 28,294.98 and 11,551.70 is: 15,940.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.42 : 28,294.98 = 11,551.70 : x
  2. Step 2: Convert to fraction form
    20,504.42/28,294.98 = 11,551.70/x
  3. Step 3: Cross multiply
    20,504.42x = 28,294.98 × 11,551.70
  4. Step 4: Simplify right side
    20,504.42x = 326,855,120.47
  5. Step 5: Solve for x
    x = 326,855,120.47/20,504.42
  6. Step 6: Final answer
    x = 15,940.72

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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.