Home / 39,101.67-53,960.10-21,196.62

Finding the Fourth Proportional to 39,101.67, 53,960.10 and 21,196.62

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Solution

The fourth proportional to 39,101.67, 53,960.10 and 21,196.62 is: 29,251.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,101.67 : 53,960.10 = 21,196.62 : x
  2. Step 2: Convert to fraction form
    39,101.67/53,960.10 = 21,196.62/x
  3. Step 3: Cross multiply
    39,101.67x = 53,960.10 × 21,196.62
  4. Step 4: Simplify right side
    39,101.67x = 1,143,771,734.86
  5. Step 5: Solve for x
    x = 1,143,771,734.86/39,101.67
  6. Step 6: Final answer
    x = 29,251.22

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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.