Home / 39,006.12-53,828.17-21,100.86

Finding the Fourth Proportional to 39,006.12, 53,828.17 and 21,100.86

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Solution

The fourth proportional to 39,006.12, 53,828.17 and 21,100.86 is: 29,119.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,006.12 : 53,828.17 = 21,100.86 : x
  2. Step 2: Convert to fraction form
    39,006.12/53,828.17 = 21,100.86/x
  3. Step 3: Cross multiply
    39,006.12x = 53,828.17 × 21,100.86
  4. Step 4: Simplify right side
    39,006.12x = 1,135,820,679.23
  5. Step 5: Solve for x
    x = 1,135,820,679.23/39,006.12
  6. Step 6: Final answer
    x = 29,119.04

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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.