Home / 20,651.66-28,488.98-16,106.12

Finding the Fourth Proportional to 20,651.66, 28,488.98 and 16,106.12

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Solution

The fourth proportional to 20,651.66, 28,488.98 and 16,106.12 is: 22,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,651.66 : 28,488.98 = 16,106.12 : x
  2. Step 2: Convert to fraction form
    20,651.66/28,488.98 = 16,106.12/x
  3. Step 3: Cross multiply
    20,651.66x = 28,488.98 × 16,106.12
  4. Step 4: Simplify right side
    20,651.66x = 458,846,787.14
  5. Step 5: Solve for x
    x = 458,846,787.14/20,651.66
  6. Step 6: Final answer
    x = 22,218.40

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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.