Home / 22,939.08-31,662.48-13,513.08

Finding the Fourth Proportional to 22,939.08, 31,662.48 and 13,513.08

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Solution

The fourth proportional to 22,939.08, 31,662.48 and 13,513.08 is: 18,651.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,939.08 : 31,662.48 = 13,513.08 : x
  2. Step 2: Convert to fraction form
    22,939.08/31,662.48 = 13,513.08/x
  3. Step 3: Cross multiply
    22,939.08x = 31,662.48 × 13,513.08
  4. Step 4: Simplify right side
    22,939.08x = 427,857,625.24
  5. Step 5: Solve for x
    x = 427,857,625.24/22,939.08
  6. Step 6: Final answer
    x = 18,651.91

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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.