Home / 39,858.88-55,009.14-29,769.81

Finding the Fourth Proportional to 39,858.88, 55,009.14 and 29,769.81

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Solution

The fourth proportional to 39,858.88, 55,009.14 and 29,769.81 is: 41,085.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,858.88 : 55,009.14 = 29,769.81 : x
  2. Step 2: Convert to fraction form
    39,858.88/55,009.14 = 29,769.81/x
  3. Step 3: Cross multiply
    39,858.88x = 55,009.14 × 29,769.81
  4. Step 4: Simplify right side
    39,858.88x = 1,637,611,963.98
  5. Step 5: Solve for x
    x = 1,637,611,963.98/39,858.88
  6. Step 6: Final answer
    x = 41,085.25

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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.