Home / 30,838.14-42,556.92-16,691.28

Finding the Fourth Proportional to 30,838.14, 42,556.92 and 16,691.28

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Solution

The fourth proportional to 30,838.14, 42,556.92 and 16,691.28 is: 23,034.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,838.14 : 42,556.92 = 16,691.28 : x
  2. Step 2: Convert to fraction form
    30,838.14/42,556.92 = 16,691.28/x
  3. Step 3: Cross multiply
    30,838.14x = 42,556.92 × 16,691.28
  4. Step 4: Simplify right side
    30,838.14x = 710,329,467.66
  5. Step 5: Solve for x
    x = 710,329,467.66/30,838.14
  6. Step 6: Final answer
    x = 23,034.12

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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.