Home / 39,093.49-53,947.56-21,188.11

Finding the Fourth Proportional to 39,093.49, 53,947.56 and 21,188.11

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Solution

The fourth proportional to 39,093.49, 53,947.56 and 21,188.11 is: 29,238.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,093.49 : 53,947.56 = 21,188.11 : x
  2. Step 2: Convert to fraction form
    39,093.49/53,947.56 = 21,188.11/x
  3. Step 3: Cross multiply
    39,093.49x = 53,947.56 × 21,188.11
  4. Step 4: Simplify right side
    39,093.49x = 1,143,046,835.51
  5. Step 5: Solve for x
    x = 1,143,046,835.51/39,093.49
  6. Step 6: Final answer
    x = 29,238.80

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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.