Home / 39,106.52-53,966.80-21,201.36

Finding the Fourth Proportional to 39,106.52, 53,966.80 and 21,201.36

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Solution

The fourth proportional to 39,106.52, 53,966.80 and 21,201.36 is: 29,257.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,106.52 : 53,966.80 = 21,201.36 : x
  2. Step 2: Convert to fraction form
    39,106.52/53,966.80 = 21,201.36/x
  3. Step 3: Cross multiply
    39,106.52x = 53,966.80 × 21,201.36
  4. Step 4: Simplify right side
    39,106.52x = 1,144,169,554.85
  5. Step 5: Solve for x
    x = 1,144,169,554.85/39,106.52
  6. Step 6: Final answer
    x = 29,257.77

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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.