Home / 39,105.93-53,966.07-21,200.97

Finding the Fourth Proportional to 39,105.93, 53,966.07 and 21,200.97

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Solution

The fourth proportional to 39,105.93, 53,966.07 and 21,200.97 is: 29,257.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,105.93 : 53,966.07 = 21,200.97 : x
  2. Step 2: Convert to fraction form
    39,105.93/53,966.07 = 21,200.97/x
  3. Step 3: Cross multiply
    39,105.93x = 53,966.07 × 21,200.97
  4. Step 4: Simplify right side
    39,105.93x = 1,144,133,031.09
  5. Step 5: Solve for x
    x = 1,144,133,031.09/39,105.93
  6. Step 6: Final answer
    x = 29,257.28

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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.