Home / 39,080.93-53,931.26-21,174.87

Finding the Fourth Proportional to 39,080.93, 53,931.26 and 21,174.87

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Solution

The fourth proportional to 39,080.93, 53,931.26 and 21,174.87 is: 29,221.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,080.93 : 53,931.26 = 21,174.87 : x
  2. Step 2: Convert to fraction form
    39,080.93/53,931.26 = 21,174.87/x
  3. Step 3: Cross multiply
    39,080.93x = 53,931.26 × 21,174.87
  4. Step 4: Simplify right side
    39,080.93x = 1,141,987,313.56
  5. Step 5: Solve for x
    x = 1,141,987,313.56/39,080.93
  6. Step 6: Final answer
    x = 29,221.09

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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.