Home / 39,114.54-53,977.77-21,209.49

Finding the Fourth Proportional to 39,114.54, 53,977.77 and 21,209.49

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Solution

The fourth proportional to 39,114.54, 53,977.77 and 21,209.49 is: 29,268.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,114.54 : 53,977.77 = 21,209.49 : x
  2. Step 2: Convert to fraction form
    39,114.54/53,977.77 = 21,209.49/x
  3. Step 3: Cross multiply
    39,114.54x = 53,977.77 × 21,209.49
  4. Step 4: Simplify right side
    39,114.54x = 1,144,840,973.04
  5. Step 5: Solve for x
    x = 1,144,840,973.04/39,114.54
  6. Step 6: Final answer
    x = 29,268.94

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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.