Home / 30,514.38-42,107.85-17,085.51

Finding the Fourth Proportional to 30,514.38, 42,107.85 and 17,085.51

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Solution

The fourth proportional to 30,514.38, 42,107.85 and 17,085.51 is: 23,576.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,514.38 : 42,107.85 = 17,085.51 : x
  2. Step 2: Convert to fraction form
    30,514.38/42,107.85 = 17,085.51/x
  3. Step 3: Cross multiply
    30,514.38x = 42,107.85 × 17,085.51
  4. Step 4: Simplify right side
    30,514.38x = 719,434,092.25
  5. Step 5: Solve for x
    x = 719,434,092.25/30,514.38
  6. Step 6: Final answer
    x = 23,576.89

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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.