Home / 39,013.96-53,839.23-22,021.78

Finding the Fourth Proportional to 39,013.96, 53,839.23 and 22,021.78

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Solution

The fourth proportional to 39,013.96, 53,839.23 and 22,021.78 is: 30,390.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,013.96 : 53,839.23 = 22,021.78 : x
  2. Step 2: Convert to fraction form
    39,013.96/53,839.23 = 22,021.78/x
  3. Step 3: Cross multiply
    39,013.96x = 53,839.23 × 22,021.78
  4. Step 4: Simplify right side
    39,013.96x = 1,185,635,678.43
  5. Step 5: Solve for x
    x = 1,185,635,678.43/39,013.96
  6. Step 6: Final answer
    x = 30,390.04

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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.