Home / 28,776.36-39,702.24-16,198.68

Finding the Fourth Proportional to 28,776.36, 39,702.24 and 16,198.68

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Solution

The fourth proportional to 28,776.36, 39,702.24 and 16,198.68 is: 22,349.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.36 : 39,702.24 = 16,198.68 : x
  2. Step 2: Convert to fraction form
    28,776.36/39,702.24 = 16,198.68/x
  3. Step 3: Cross multiply
    28,776.36x = 39,702.24 × 16,198.68
  4. Step 4: Simplify right side
    28,776.36x = 643,123,881.04
  5. Step 5: Solve for x
    x = 643,123,881.04/28,776.36
  6. Step 6: Final answer
    x = 22,349.04

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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.