Home / 39,101.76-53,960.40-21,197.34

Finding the Fourth Proportional to 39,101.76, 53,960.40 and 21,197.34

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Solution

The fourth proportional to 39,101.76, 53,960.40 and 21,197.34 is: 29,252.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,101.76 : 53,960.40 = 21,197.34 : x
  2. Step 2: Convert to fraction form
    39,101.76/53,960.40 = 21,197.34/x
  3. Step 3: Cross multiply
    39,101.76x = 53,960.40 × 21,197.34
  4. Step 4: Simplify right side
    39,101.76x = 1,143,816,945.34
  5. Step 5: Solve for x
    x = 1,143,816,945.34/39,101.76
  6. Step 6: Final answer
    x = 29,252.31

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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.