Home / 20,497.56-28,290.78-16,012.44

Finding the Fourth Proportional to 20,497.56, 28,290.78 and 16,012.44

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Solution

The fourth proportional to 20,497.56, 28,290.78 and 16,012.44 is: 22,100.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,497.56 : 28,290.78 = 16,012.44 : x
  2. Step 2: Convert to fraction form
    20,497.56/28,290.78 = 16,012.44/x
  3. Step 3: Cross multiply
    20,497.56x = 28,290.78 × 16,012.44
  4. Step 4: Simplify right side
    20,497.56x = 453,004,417.30
  5. Step 5: Solve for x
    x = 453,004,417.30/20,497.56
  6. Step 6: Final answer
    x = 22,100.41

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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.