Home / 39,065.60-53,910.66-21,160.56

Finding the Fourth Proportional to 39,065.60, 53,910.66 and 21,160.56

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Solution

The fourth proportional to 39,065.60, 53,910.66 and 21,160.56 is: 29,201.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,065.60 : 53,910.66 = 21,160.56 : x
  2. Step 2: Convert to fraction form
    39,065.60/53,910.66 = 21,160.56/x
  3. Step 3: Cross multiply
    39,065.60x = 53,910.66 × 21,160.56
  4. Step 4: Simplify right side
    39,065.60x = 1,140,779,755.57
  5. Step 5: Solve for x
    x = 1,140,779,755.57/39,065.60
  6. Step 6: Final answer
    x = 29,201.64

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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.