Home / 39,114.27-53,977.53-21,209.13

Finding the Fourth Proportional to 39,114.27, 53,977.53 and 21,209.13

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Solution

The fourth proportional to 39,114.27, 53,977.53 and 21,209.13 is: 29,268.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,114.27 : 53,977.53 = 21,209.13 : x
  2. Step 2: Convert to fraction form
    39,114.27/53,977.53 = 21,209.13/x
  3. Step 3: Cross multiply
    39,114.27x = 53,977.53 × 21,209.13
  4. Step 4: Simplify right side
    39,114.27x = 1,144,816,450.85
  5. Step 5: Solve for x
    x = 1,144,816,450.85/39,114.27
  6. Step 6: Final answer
    x = 29,268.51

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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.