Home / 39,093.11-53,948.40-21,188.06

Finding the Fourth Proportional to 39,093.11, 53,948.40 and 21,188.06

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Solution

The fourth proportional to 39,093.11, 53,948.40 and 21,188.06 is: 29,239.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,093.11 : 53,948.40 = 21,188.06 : x
  2. Step 2: Convert to fraction form
    39,093.11/53,948.40 = 21,188.06/x
  3. Step 3: Cross multiply
    39,093.11x = 53,948.40 × 21,188.06
  4. Step 4: Simplify right side
    39,093.11x = 1,143,061,936.10
  5. Step 5: Solve for x
    x = 1,143,061,936.10/39,093.11
  6. Step 6: Final answer
    x = 29,239.47

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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.