Home / 38,907.34-53,691.54-21,911.63

Finding the Fourth Proportional to 38,907.34, 53,691.54 and 21,911.63

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Solution

The fourth proportional to 38,907.34, 53,691.54 and 21,911.63 is: 30,237.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,907.34 : 53,691.54 = 21,911.63 : x
  2. Step 2: Convert to fraction form
    38,907.34/53,691.54 = 21,911.63/x
  3. Step 3: Cross multiply
    38,907.34x = 53,691.54 × 21,911.63
  4. Step 4: Simplify right side
    38,907.34x = 1,176,468,890.15
  5. Step 5: Solve for x
    x = 1,176,468,890.15/38,907.34
  6. Step 6: Final answer
    x = 30,237.71

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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.