Home / 39,001.78-53,822.46-21,096.82

Finding the Fourth Proportional to 39,001.78, 53,822.46 and 21,096.82

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Solution

The fourth proportional to 39,001.78, 53,822.46 and 21,096.82 is: 29,113.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,001.78 : 53,822.46 = 21,096.82 : x
  2. Step 2: Convert to fraction form
    39,001.78/53,822.46 = 21,096.82/x
  3. Step 3: Cross multiply
    39,001.78x = 53,822.46 × 21,096.82
  4. Step 4: Simplify right side
    39,001.78x = 1,135,482,750.58
  5. Step 5: Solve for x
    x = 1,135,482,750.58/39,001.78
  6. Step 6: Final answer
    x = 29,113.61

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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.