Home / 39,017.14-53,843.27-21,111.75

Finding the Fourth Proportional to 39,017.14, 53,843.27 and 21,111.75

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Solution

The fourth proportional to 39,017.14, 53,843.27 and 21,111.75 is: 29,134.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,017.14 : 53,843.27 = 21,111.75 : x
  2. Step 2: Convert to fraction form
    39,017.14/53,843.27 = 21,111.75/x
  3. Step 3: Cross multiply
    39,017.14x = 53,843.27 × 21,111.75
  4. Step 4: Simplify right side
    39,017.14x = 1,136,725,655.42
  5. Step 5: Solve for x
    x = 1,136,725,655.42/39,017.14
  6. Step 6: Final answer
    x = 29,134.01

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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.