Home / 39,017.08-53,843.17-21,111.69

Finding the Fourth Proportional to 39,017.08, 53,843.17 and 21,111.69

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Solution

The fourth proportional to 39,017.08, 53,843.17 and 21,111.69 is: 29,133.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,017.08 : 53,843.17 = 21,111.69 : x
  2. Step 2: Convert to fraction form
    39,017.08/53,843.17 = 21,111.69/x
  3. Step 3: Cross multiply
    39,017.08x = 53,843.17 × 21,111.69
  4. Step 4: Simplify right side
    39,017.08x = 1,136,720,313.66
  5. Step 5: Solve for x
    x = 1,136,720,313.66/39,017.08
  6. Step 6: Final answer
    x = 29,133.92

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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.