Home / 39,134.16-53,991.96-22,136.40

Finding the Fourth Proportional to 39,134.16, 53,991.96 and 22,136.40

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Solution

The fourth proportional to 39,134.16, 53,991.96 and 22,136.40 is: 30,540.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,134.16 : 53,991.96 = 22,136.40 : x
  2. Step 2: Convert to fraction form
    39,134.16/53,991.96 = 22,136.40/x
  3. Step 3: Cross multiply
    39,134.16x = 53,991.96 × 22,136.40
  4. Step 4: Simplify right side
    39,134.16x = 1,195,187,623.34
  5. Step 5: Solve for x
    x = 1,195,187,623.34/39,134.16
  6. Step 6: Final answer
    x = 30,540.78

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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.