Home / 39,829.68-54,914.04-30,279.78

Finding the Fourth Proportional to 39,829.68, 54,914.04 and 30,279.78

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Solution

The fourth proportional to 39,829.68, 54,914.04 and 30,279.78 is: 41,747.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,829.68 : 54,914.04 = 30,279.78 : x
  2. Step 2: Convert to fraction form
    39,829.68/54,914.04 = 30,279.78/x
  3. Step 3: Cross multiply
    39,829.68x = 54,914.04 × 30,279.78
  4. Step 4: Simplify right side
    39,829.68x = 1,662,785,050.11
  5. Step 5: Solve for x
    x = 1,662,785,050.11/39,829.68
  6. Step 6: Final answer
    x = 41,747.39

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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.